Image / Subseries 4.1: Lee de Forest Patents

View source image on contributor's website.

Get Citation

Have a question about this item?

Contact Owner

Item information. View source record on contributor's website.

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)
Type: image
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

About the collections in Calisphere

Learn more about the collections in Calisphere. View our statement on digital primary resources.

Copyright, permissions, and use

If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.

Share your story

Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.