All Patents of Type: tube corrugating machines


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All Patents of Type: tube corrugating machines
Patents 1 - 4 of 4
Number	Date	Patentee	Title	Type
390,899	Oct. 09, 1888	C.D. Wainwright, R.F. Pratt	Machine for Corrugating Wrought Metal Tubes	tube corrugating machines
426,439	Apr. 29, 1890	J.F. Fife	Machine for Corrugating Tubing	tube corrugating machines
432,232	Jul. 15, 1890	J.F. Fife	Machine for Corrugating Wrought Metal Tubing	tube corrugating machines
434,060	Aug. 12, 1890	C.D. Wainwright, J.S. Hansen	Machine for Corrugating Tubes	tube corrugating machines