Electric Signal System (open access)

Electric Signal System

Patent for electric signal system. Illustration included.
Date: May 16, 1905
Creator: Adams, Edwin Johnson
System: The Portal to Texas History
Envelop Fastener (open access)

Envelop Fastener

Patent for an envelop fastener. Illustration included.
Date: May 2, 1905
Creator: Albea, Mary
System: The Portal to Texas History