Patents for Kenneth S. M. Davidson


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Patents for Kenneth S. M. Davidson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,803,842	May 05, 1931	K.S. Davidson	Gauge Glass Mounting
	1,949,930	Mar. 06, 1934	K.S. Davidson	Steam Valve
	1,951,926	Mar. 20, 1934	K.S. Davidson	Relief Valve