Folder PATENTS: Telephones and Components

Lists of patents by topic that have proven useful in telephony research.

This is a group project and is under development. Send lists for your area of research - e.g. sets, dials, receivers, transmitters, prototypes, accessories, etc.

Documents

pdf Patents - Telephone Number Card Holders Popular

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Patents_Telephone_Number_Card_Holders_tci.pdf

Patents - Telephone Number Card Holders

Contributed by Paul Fassbender.

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Recent Contributors

Thanks for new documents from Lou Maffei, Rick Thoensen. Paul Fassbender, Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, and Jeff Lamb.

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