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3 Matching Results
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Well-Digging Machine.
Patent for an improved oil well digging machine.
Date:
December 1, 1908
Creator:
Clack, Judge H.
System:
The Portal to Texas History
Safety-Clamp for Spectacle-Cases &c.
Patent for a safety clamp for spectacle cases and other small items, which holds the item in clothes pockets through the attachment of a clamp.
Date:
February 1, 1910
Creator:
Trulove, James W.
System:
The Portal to Texas History
Cultivator Foot.
Patent for a cultivator foot that allows shovels or sweep blades to be quickly attached to it or detached from it.
Date:
June 1, 1915
Creator:
Vance, Caughey C.
System:
The Portal to Texas History