All Patents in class 72/78


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All Patents in class 72/78
Patents 1 - 6 of 6
Number	Title	Classification(s)
9,398X	Improvement in Machines for Cutting Wood and Other Screws	408/43, 408/56, 72/42, 72/78
RE2	Improvement in Machines for Cutting Wood and Other Screws	408/43, 408/56, 72/42, 72/78
12,669	Die and Stock for Ornamenting Metal Tubes	72/123, 72/78
390,899	Machine for Corrugating Wrought Metal Tubes	72/123, 72/78
3,130,611	Swaging Machine	72/400, 72/402, 72/415, 72/78, 72/80
3,191,415	Metal Working	72/78, 72/95