Resource Type

Coin Controlled Vending Machine (open access)

Coin Controlled Vending Machine

Patent for coin controlled vending machine. Illustrations included.
Date: April 26, 1904
Creator: Kreter, Otto
System: The Portal to Texas History
Dental Clamp (open access)

Dental Clamp

Patent for a dental clamp. Illustration included.
Date: July 26, 1904
Creator: Carroll, Houston Monroe
System: The Portal to Texas History