Patents for John R. Frantz


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Patents for John R. Frantz
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	1,137,854	May 04, 1915	J.R. Frantz	Doweling-machine
	2,380,226	Jul. 10, 1945	J.R. Frantz	Automatic Compressor Regulator