Resource Type
Counties
3 Matching Results
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Electrically-Operated Door.
Patent for am electrically-operated door. This device has mechanisms that are when stepped on automatically open and close the door.
Date:
August 1, 1916
Creator:
Cain, Ira L.
System:
The Portal to Texas History
Powder Blower
Patent for a new and improved powder blower used to insert powder medicine into the vagina, including illustrations and instructions.
Date:
April 1, 1913
Creator:
Woodward, Mortimer Lee
System:
The Portal to Texas History
Method of Collecting and Conveying Water.
Patent for a new and useful method of collecting and conveying water.
Date:
March 1, 1898
Creator:
Manning, James
System:
The Portal to Texas History