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All Patents in class 83/54
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,776,003Jan. 01, 1957F. KosterMethod and Apparatus for Cutting Tubingpipe and tube notchers
3,074,302Jan. 22, 1963H. May, E. CoulonMethod of Preparing Mitered Tubular Jointspipe and tube notchers
3,698,274Oct. 17, 1972D.C. Mohr, B.J. Miller, E.I. CoulonApparatus for Piercing Openings in Tubingpipe and tube notchers
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