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发明名称
Attachment for motion picture cameras
摘要
申请公布号
US1866588(A)
申请公布日期
1932.07.12
申请号
US19280285236
申请日期
1928.06.14
申请人
WARREN GUY S
发明人
WARREN GUY S.
分类号
G03B19/18
主分类号
G03B19/18
代理机构
代理人
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