All Patents in class 254/304


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

All Patents in class 254/304
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	671,177	Apr. 02, 1901	J.V. Beekman	Derrick-engine
	715,991	Dec. 16, 1902	C.A. Baechtold, H.N. Covell	Derrick swinging and controlling device
	765,659	Jul. 26, 1904	H.N. Covell	Rope-drum engine
	933,825	Sep. 14, 1909	H.N. Covell	Road Engine