Resource Type
Counties
3 Matching Results
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Nut-Lock
Patent for a nut lock. Illustrations included.
Date:
October 22, 1912
Creator:
Martin, George W.
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock. Illustrations included.
Date:
October 22, 1912
Creator:
Martin, George W.
System:
The Portal to Texas History
Pump.
Patent for "improvements in pumps which move a long column of water with each stroke but discharge a relatively small quantity" (lines 10-13) including instructions and illustrations.
Date:
May 16, 1911
Creator:
Kangas, Frank Oskar
System:
The Portal to Texas History