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3 Matching Results
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Ariel Navigation
Patent for an airplane which will maintain its balance in the air and can be easily maneuvered up and down and around in the air.
Date:
May 9, 1911
Creator:
Nichols, Jack Lloyd
System:
The Portal to Texas History
Railroad-Tie
Patent for a concrete railroad tie reinforced with steel. Illustrations included.
Date:
May 3, 1910
Creator:
Matejka, Frank
System:
The Portal to Texas History
Incinerator-Closet
Patent for an incinerator closet with "the purpose of receiving human excreta so the contents may be dried out and burned up" (lines 11-13) within a fireproof device, including instructions and illustrations.
Date:
May 28, 1918
Creator:
Greene, George A.
System:
The Portal to Texas History