https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series?format=html Wed, 22 Sep 2010 12:53:05 -0700 en-GB hourly 1 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/3207-993-002-01-i1-no300switchsysstationsys-tl?format=html 993.002.01 I1-No300SwitchSysStationSys Tl https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/3207-993-002-01-i1-no300switchsysstationsys-tl?format=html (Anonymous) 993 Division (8 Digits Series) Wed, 22 Sep 2010 12:53:05 -0700 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/559-993-201-02-i1?format=html 993.201.02 I1 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/559-993-201-02-i1?format=html (Anonymous) 993 Division (8 Digits Series) Wed, 09 Dec 2009 18:58:51 -0800 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/506-993-003-01-i1-se?format=html 993.003.01 I1-se No. 153A Amplifier For Use With Head Telephone Sets, Issue
1, 1959-03-01

]]> https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/506-993-003-01-i1-se?format=html No. 153A Amplifier For Use With Head Telephone Sets, Issue
1, 1959-03-01

]]> (Anonymous) 993 Division (8 Digits Series) Thu, 03 Dec 2009 08:25:52 -0800 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/507-993-201-01-i1-se?format=html 993.201.01 I1-se Emergency Reporting System - 520-Type PBX - Direct Line
Systems, Issue 1, 1958-06-01

]]> https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/507-993-201-01-i1-se?format=html Emergency Reporting System - 520-Type PBX - Direct Line
Systems, Issue 1, 1958-06-01

]]> (Anonymous) 993 Division (8 Digits Series) Thu, 03 Dec 2009 08:25:52 -0800 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/467-993-301-01-se?format=html 993.301.01-se SC2 Selective Control System, Issue 1, Aug. 1957

]]> https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/467-993-301-01-se?format=html SC2 Selective Control System, Issue 1, Aug. 1957

]]> (Anonymous) 993 Division (8 Digits Series) Tue, 24 Nov 2009 09:12:08 -0800 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/468-993-402-01-se?format=html 993.402.01-se Common User Group Equipment - Air-Ground Voice
Communications System - Private Service Systems, Issue 1, Feb. 1958
(Not entirely clear from the title unless you're familiar with it, this
describes the SAGE air-ground voice communications system.)

]]> https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/468-993-402-01-se?format=html Common User Group Equipment - Air-Ground Voice
Communications System - Private Service Systems, Issue 1, Feb. 1958
(Not entirely clear from the title unless you're familiar with it, this
describes the SAGE air-ground voice communications system.)

]]> (Anonymous) 993 Division (8 Digits Series) Tue, 24 Nov 2009 09:12:08 -0800 https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/469-993-409-01-se?format=html 993.409.01-se General Description of SS1 Selective Signaling Systems, Issue
1, Oct. 15, 1959
(This one is interesting. It eventually became 982-325-100 but this
version is done on a typewriter with very neat but clearly hand drawn
schematics.? Guess they wanted to get the BSP out there quickly?)

]]> https://telephonecollectors.info/index.php/browse/bsp-bell-system-practices-by-doc/bsp-categories-by-later-division-number-by-doc/950-993-division-8-digits-series/993-division-8-digits-series/469-993-409-01-se?format=html General Description of SS1 Selective Signaling Systems, Issue
1, Oct. 15, 1959
(This one is interesting. It eventually became 982-325-100 but this
version is done on a typewriter with very neat but clearly hand drawn
schematics.? Guess they wanted to get the BSP out there quickly?)

]]> (Anonymous) 993 Division (8 Digits Series) Tue, 24 Nov 2009 09:12:08 -0800