David A. Williams

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Bel Air, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Decorative vent pattern for circular saw blades
- Patent number D388318
- Issue date Dec 30, 1997
- Black & Decker Inc.
- Nicholas E. Achterberg
- D08 - Tools and hardware
Information Patent Grant
Saw blade with vents
- Patent number D383368
- Issue date Sep 9, 1997
- Black & Decker Inc.
- Nicholas E. Achterberg
- D08 - Tools and hardware