Ralph Holmes

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Burley, ID, US

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Patents Grantslast 30 patents

Information Patent Grant
Calculator and apparatus for macrophotography
- Patent number 4,479,169
- Issue date Oct 23, 1984
- Ralph Holmes
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic flash unit assembly
- Patent number 4,425,531
- Issue date Jan 10, 1984
- Ralph Holmes
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Calculator and apparatus for macrophotography
- Patent number 4,361,752
- Issue date Nov 30, 1982
- Ralph Holmes
- G06 - COMPUTING CALCULATING COUNTING