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All Patents in class 409/27
Patents 1 - 2 of 2
First set of recordsLast set of records
1,286,327Dec. 03, 1918H.A. HowarthGear Cutting Machinegear making machines
3,521,524Jul. 21, 1970R.A. Wassdorp, E.J. HunkelerControl Apparatus for Checking and Controlling Sequential Machine Operationsmachine tool controls
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