IP Library › Granted Patent US 4,909,814
Granted Patent Utility
US 4,909,814 · App. 07/233,359

Dust filtering and collection system

Inventor: David E. Sisk
Patented Case View Patent ↗
Granted: Mar 20, 1990 Filed: Aug 18, 1988
Inventor
David E. Sisk

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Quick Facts
Patent No.
US 4,909,814
App. No.
07/233,359
Filed
1988-08-18
Granted
1990-03-20
Kind
A