U.S. Patent #1,996,988 – Method and Means for Concentrating Solutions, 1935
File — Box: 56, Folder: 8
Dates
- Creation: 1935
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