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发明名称
Moving picture machine safety device
摘要
申请公布号
US1836071(A)
申请公布日期
1931.12.15
申请号
US19270171125
申请日期
1927.02.26
申请人
ROBERT HENRI;AKINS FLOYD H
发明人
HENRI ROBERT;AKINS FLOYD H.
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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