Resource Type

Key-Ring Holder. (open access)

Key-Ring Holder.

Patent for an improved device which holds key rings, and may be fastened to a belt.
Date: January 16, 1917
Creator: Kropp, August
System: The Portal to Texas History
Doubletree Attachment (open access)

Doubletree Attachment

Patent for a doubletree attachments. Illustration included.
Date: August 16, 1910
Creator: Ball, William Rossem
System: The Portal to Texas History