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经营范围
发明名称
Improved method of driving roll film bobbins in photographic cameras and similar machines
摘要
申请公布号
GB500116(A)
申请公布日期
1939.01.30
申请号
GB19370020896
申请日期
1937.07.28
申请人
THE MIDLAND BANK EXECUTOR AND TRUSTEE COMPANY, LIMITED;CHARLES VINTEN;PHYLLIS HELEN VINTEN;WALTER JAMES SADLER;W. VINTEN LIMITED
发明人
分类号
G03B17/30
主分类号
G03B17/30
代理机构
代理人
主权项
地址
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