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Agricultural Machine.
Patent for an agricultural machine, a frame structure that can hold multiple types of agricultural devices and allows for the proper adjustment and manipulation of said devices without changing the frame's structure.
Date:
December 30, 1919
Creator:
Northcutt, John & Crawford, Miner
System:
The Portal to Texas History
Whiffletree
Patent for a whiffletree. Illustration included.
Date:
December 10, 1912
Creator:
Jackson, Oliver S.
System:
The Portal to Texas History