IP Library › Granted Patent US 4,917,499
Granted Patent Utility
US 4,917,499 · App. 06/914,900

Apparatus for analyzing contamination

Inventors: Robert J. Champetier, Richard L. Graff
Patented Case View Patent ↗
Granted: Apr 17, 1990 Filed: Oct 3, 1986
Inventors
Robert J. Champetier
Richard L. Graff
Assignee (at issue)
Hughes Aircraft Company

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Quick Facts
Patent No.
US 4,917,499
App. No.
06/914,900
Filed
1986-10-03
Granted
1990-04-17
Kind
A