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发明名称
Film tempo punch
摘要
申请公布号
US2239532(A)
申请公布日期
1941.04.22
申请号
US19380236826
申请日期
1938.10.24
申请人
WARNER BROTHERS PICTURES, INC.
发明人
MCCLAY ROYAL C.
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
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地址
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