Skip to main content

U.S. Patent Application #336,032 – Contact Apparatus and Method – File 1, 1940-1941, undated

 File — Box: 7, Folder: 4

Dates

  • Creation: 1940-1941, undated

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)