Patents for John Stumpf


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Patents for John Stumpf
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	553,878	Feb. 04, 1896	J. Stumpf	Valve-motion for pumps
	578,950	Mar. 16, 1897	J. Stumpf	Pump
	603,475	May 03, 1898	J. Stumpf	Cut-off mechanism for steam-engines