Douglas A. Richardson

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Berkeley Heights, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Calligraphic apparatus and method and engraving tool for use in con...
- Patent number 4,448,120
- Issue date May 15, 1984
- William A. Richardson
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Calligraphic apparatus and method
- Patent number 4,369,701
- Issue date Jan 25, 1983
- William A. Richardson
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Charm or the like
- Patent number D249781
- Issue date Oct 3, 1978
- Douglas A. Richardson
- D11 - Jewelry, symbolic insignia, and ornaments