Granted Patent
Utility
US 4,257,592 · App. 05/964,558
Exercising apparatus with improvements in handle structure, rope arrangement, and clamping means
Inventor:
Arthur A. Jones
Patented Case
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Granted: Mar 24, 1981
Filed: Nov 29, 1978
Inventor
Arthur A. Jones
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.