Skip to main content

United States Patent #3,824,133 – Fabrication of Electrically Insulating Regions in Optical Devices by Proton Bombardment, 1974

 File — Box: 52, Folder: 44

Dates

  • Creation: 1974

Repository Details

Part of the Science History Institute Archives Repository

Contact:
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)