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5 Matching Results
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Machine-Brake.
Patent for a machine brake for motorized fans that allows the speed to be regulated.
Date:
July 25, 1911
Creator:
Mallory, John W. & Peters, Walter C.
System:
The Portal to Texas History
Twine Holder
Patent for a twine holder. Illustration included.
Date:
October 25, 1904
Creator:
Weir, Roy Lee
System:
The Portal to Texas History
Nut-Lock
Patent for a nut lock, to hold a nut in place or act in place of a washer, including illustrations.
Date:
September 25, 1900
Creator:
Dowell, Jeff Davis & Galliher, Lawrence M.
System:
The Portal to Texas History
Harrow-Cultivator.
Patent for a harrow cultivator, which can be operated on opposite sides of a row of plants at the same time.
Date:
August 25, 1908
Creator:
Farris, Henry C.
System:
The Portal to Texas History
Potato-Cutter.
Patent for a potato cutter for dividing seed potatoes into sections for planting.
Date:
February 25, 1908
Creator:
Wheeler, Melley M.
System:
The Portal to Texas History