Richard W. Hanson

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Sherwood, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Mechanical chair
- Patent number 5,405,188
- Issue date Apr 11, 1995
- MDT Corporation
- Richard W. Hanson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Quick disconnect multi-line connector in a dental system
- Patent number 5,342,097
- Issue date Aug 30, 1994
- MDT Corporation
- Richard W. Hanson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Dental control unit with articulated whip arms
- Patent number 5,297,961
- Issue date Mar 29, 1994
- MDT Corporation
- Richard W. Hanson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE