U.S. Patent Application #219,485 – Use of Wetting and Emulsifying Agents, 1938-1941, undated
File — Box: 6, Folder: 37
Dates
- Creation: 1938-1941, 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)
reference@sciencehistory.org
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
reference@sciencehistory.org