U.S. Patent Application #280,674 – Smoke Abatement – File 1, 1939-1941
File — Box: 6, Folder: 42
Dates
- Creation: 1939-1941
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