All Patents in class 83/188


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All Patents in class 83/188
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,776,003	Jan. 01, 1957	F. Koster	Method and Apparatus for Cutting Tubing	pipe and tube notchers
3,698,274	Oct. 17, 1972	D.C. Mohr, B.J. Miller, E.I. Coulon	Apparatus for Piercing Openings in Tubing	pipe and tube notchers