All Patents in class 15/314


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All Patents in class 15/314
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
460,935	Oct. 06, 1891	G.L. Cumminings	Pneumatic carpet-cleaning apparatus
2,430,448	Nov. 11, 1947	R. Breckheimer	Dust collector	waste collection mechanisms