Debenture Holders - Ketchel, W. Ray (Formerly Helen Ray Estate), 1970
File — Box: 14, Folder: 35
Dates
- Creation: 1970
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