Patents for Walter R. Johnson


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Patents for Walter R. Johnson
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	6,294	Apr. 10, 1849	H. Knowles	Planing-machine
	6,380	Apr. 24, 1849	G. Hatheway	Sawmill with cylindrical saws
	6,443	May 08, 1849	H. Law	Machinery for dressing staves
	7,543	Aug. 06, 1850	H. Carver	Scraper Plane with a Frame Body
	7,755	Nov. 05, 1850	J. Judson, A. Judson	Valve for governors