Patents for Charles G. Johnson


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Patents for Charles G. Johnson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,433,528	Oct. 31, 1922	C.G. Johnson, E.J. Bryant	Ring Thread Gauge
	1,660,335	Feb. 28, 1928	C.G. Johnson	Snap Thread Gage
	1,851,283	Mar. 29, 1932	C.G. Johnson	Gauge