发明名称 Improvements in or relating to photographic lens hoods
摘要 <p>661,620. Photographic lens hoods. BRIDGE, W. J. Feb. 17, 1950 [June 8, 1949], No. 15231/49. Class 98 (i). A photographic lens hood formed from rubber, synthetic rubber, or rubber composition has a neck portion a adapted to fit over the camera lens mount b, an enlarged cup-shaped portion c which can be folded back into the dotted position when the hood is not in use, and an annular recess d moulded inside the hood to receive a filter or supplementary lens or both.</p>
申请公布号 GB661620(A) 申请公布日期 1951.11.21
申请号 GB19490015231 申请日期 1949.06.08
申请人 WILLIAM JAMES BRIDGE 发明人
分类号 G03B11/04 主分类号 G03B11/04
代理机构 代理人
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