IP Library › Granted Patent US 4,563,633
Granted Patent Utility
US 4,563,633 · App. 06/493,540

Apparatus for sensing openings in sheet

Inventors: Ken Johnson, Paul S. Sanik
Patented Case View Patent ↗
Granted: Jan 7, 1986 Filed: May 11, 1983
Inventors
Ken Johnson
Paul S. Sanik
Assignee (at issue)
Owens-Corning Fiberglas Corp.

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Quick Facts
Patent No.
US 4,563,633
App. No.
06/493,540
Filed
1983-05-11
Granted
1986-01-07
Kind
A