IP Library › Granted Patent US 5,323,631
Granted Patent Utility
US 5,323,631 · App. 08/048,806

Method for forming a hollow workpiece using a snake tool

Inventors: Robert Weykamp, Robert P. Evert
Patented Case View Patent ↗
Granted: Jun 28, 1994 Filed: Apr 16, 1993
Inventors
Robert Weykamp
Robert P. Evert
Assignee (at issue)
Aluminum Company of America

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Quick Facts
Patent No.
US 5,323,631
App. No.
08/048,806
Filed
1993-04-16
Granted
1994-06-28
Kind
A