Robert Koopmans

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Rockwood, CA

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Patents Grantslast 30 patents

Information Patent Grant
Removable filter with jack sealing device and vacuum cleaning heads
- Patent number 6,337,013
- Issue date Jan 8, 2002
- Ontario Power Generation, Inc.
- Robert Koopmans
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL