Community Correspondence  -   Individual letters from Concerned Citizens - 911th -Pittsburgh PA (open access)

Community Correspondence - Individual letters from Concerned Citizens - 911th -Pittsburgh PA

Community Correspondence - letter from Catherine Schienle concering the closure of F Kelly and the 911th in Piitsburg PA
Date: July 31, 2005
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
Rubber Compund and Material for Use in Making the Same. (open access)

Rubber Compund and Material for Use in Making the Same.

Patent for a rubber compound, which is not damaged by oils and therefore usable in bearings. It features asphaltic bitumen rather than paraffin bitumen.
Date: December 31, 1907
Creator: Strain, Ebenezer W.
Object Type: Patent
System: The Portal to Texas History