Inventor
GRUBISH DAVID JOHN
US4 patents
Patents
4 patentsUS6083108AJul 4, 2000
Collapsible and relatively rotatable drive shaft
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Single position turbine rotor repair method
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US6384364B1May 7, 2002
Method of aligning electrode in multiple-axis EDM drilling
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US6509539B2Jan 21, 2003
Method of drilling dovetail pins
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