Mark H. Helmick

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Canoga Park, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for an improved programmable X-ray film changer
- Patent number 4,782,504
- Issue date Nov 1, 1988
- Medrad, Inc.
- Otto K. Weber
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY