United States Patent #3,401,357 – Electromagnetic Wave Amplifier Oscillator and Modulator, 1968
File — Box: 52, Folder: 39
Dates
- Creation: 1968
Repository Details
Part of the Science History Institute Archives Repository
Contact:
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Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
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315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
reference@sciencehistory.org