All Patents in class 72/211


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All Patents in class 72/211
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
501,644	Jul. 18, 1893	J. Blumer	Corrugating Tool	sheet metal tools
1,951,821	Mar. 20, 1934	J.C. Enders	Fender Shaper	sheet metal
2,352,009	Jun. 20, 1944	V.E. Robbins	Metalworking Device	sheet metal bending machines