Patent US2922257 - METAL CUTTING AND GRINDING APPARATUS

Patents

Inventors: Harry Calvin Else, Harry Calvin Else
Current U.S. Classification: 451/150; 125/4

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Citing Patent	Filing date	Issue date	Original Assignee	Title
US4094102	18 Apr 1977	13 Jun 1978		Oscillating cut-off saw
US5175964	26 Jul 1991	5 Jan 1993		Method and apparatus for removing flaws from internal pipe walls
US7316600	30 Mar 2007	8 Jan 2008	Rolls-Royce Corporation	Metal working method to reduce thermal damage