IP Library › Granted Patent US 5,344,191
Granted Patent Utility
US 5,344,191 · App. 07/987,694

Hidden entry system and use thereof

Inventors: John C. H. Chang, Peter Walter
Patented Case View Patent ↗
Granted: Sep 6, 1994 Filed: Dec 9, 1992
Inventors
John C. H. Chang
Peter Walter
Assignee (at issue)
Wallace Computer Services, Inc.

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Quick Facts
Patent No.
US 5,344,191
App. No.
07/987,694
Filed
1992-12-09
Granted
1994-09-06
Kind
A