PHOTOGRAPHIC RESEARCH OGANIZATION, INC

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FAIRFIELD, CT, US

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Information Patent Application
Telescopic tube and cam connecting and locking mechanism
- Publication number 20090274511
- Publication date Nov 5, 2009
- Photographic Research Oganization, Inc.
- Shi-Neng Chen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

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