Ralph Duane Whaley

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Roseville, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Powder dispenser
- Patent number 6,119,688
- Issue date Sep 19, 2000
- 3M Innovative Properties Company
- Ralph Duane Whaley
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Powder dispenser
- Patent number 6,029,661
- Issue date Feb 29, 2000
- 3M Innovative Properties Company
- Ralph Duane Whaley
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE