pdf Party Lines by Kempster Miller - 1898 Popular
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1898_Elect_Eng_and_Tel_Mag_v12_Party Lines_Kempster_Miller_tci_ocr.pdf
44 pages. 6-part series published in Electrical Engineering and Telephone Magazine, vol. 12-13, August 1898 - January 1899. Contributed by Karl Brose. Bookmarked by Paul Fassbender.
I. Party Lines
II. Party Lines
III. Selective Signaling "Step by Step"
IV. Strength and Polarity Systems
V. Strength and Polarity Systems - continued
VI. Harmonic Systems
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