History San Jose Research Library > History San Jose Online Catalog > Subseries 4.1: Lee de Forest Patents

/ Subseries 4.1: Lee de Forest Patents

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Title
Subseries 4.1: Lee de Forest Patents
Creator
de Forest, Lee
Contributing Institution
History San Jose Research Library
Collection
History San Jose Online Catalog
Rights Information
Please contact the contributing institution for more information regarding the copyright status of this object.
Description
United States and Foreign Patents filed by Lee de Forest. See Container List. Includes Audion Patents No. 879,532 (Space Telegraphy, filed 01/29/1907) and 841,387 (Device for Amplifying Feeble Electrical Currents, filed 10/25/1906)
Identifier
42797E2A-8F19-4289-A2F8-154913361151
2003-34-548
Subject
Inventors--California (LCSH)
Patents (LCSH)
De Forest Phonofilm Corporation
De Forest Radio Telephone & Telegraph Co
De Forest Radio Telephone Company
De Forest Wireless Telegraph Company
Cautery (LCSH)
Surgical instruments
Telegraph, Wireless (LCSH)
Radiotelephone (LCSH)
Sound--Recording and reproducing (LCSH)
Sound motion pictures (LCSH)
Audion
De Forest, Lee

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