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COUPLING PATENT
This patent is for a new coupling system to connect hollow pipes. It is specifically designed to address issues of vibration, which cause the coupling pin to become damaged.
Date:
July 10, 1919
Creator:
Hiegel, Joseph L.
System:
The Portal to Texas History
Nutcracker
Patent for a nutcracker that can be used for a variety of types of nuts without crushing them.
Date:
September 10, 1912
Creator:
Moser, Frank W.
System:
The Portal to Texas History