Variable Speed Mechanism (open access)

Variable Speed Mechanism

Patent for a variable speed mechanism. Illustration included.
Date: June 9, 1908
Creator: Doebbeling, Almond J.
System: The Portal to Texas History
Post-Card Stand. (open access)

Post-Card Stand.

Patent for a post card stand, which turns by a crank mechanism to show all the postcards on the rack.
Date: June 8, 1909
Creator: Bishop, Marvin E.
System: The Portal to Texas History