IP Library › Granted Patent US 4,901,716
Granted Patent Utility
US 4,901,716 · App. 07/306,043

Clean room helmet system

Inventors: Wyman H. Stackhouse, Ian M. Williamson
Patented Case View Patent ↗
Granted: Feb 20, 1990 Filed: Feb 6, 1989
Inventors
Wyman H. Stackhouse
Ian M. Williamson

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Quick Facts
Patent No.
US 4,901,716
App. No.
07/306,043
Filed
1989-02-06
Granted
1990-02-20
Kind
A