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Patent applications and USPTO patent grants for Shum; Ivan W. K..The latest application filed is for "camera film cassette assembly apparatus and method".
Patent | Date |
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Camera film cassette assembly apparatus and method Grant 6,751,407 - Shum , et al. June 15, 2 | 2004-06-15 |
Camera film cassette assembly apparatus and method App 20030161627 - Shum, Ivan W.K. ;   et al. | 2003-08-28 |
Photographic film package with detachable cartridge App 20010041066 - So, Bangly K.W. ;   et al. | 2001-11-15 |
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