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发明名称
Cinematographic mechanism
摘要
申请公布号
US2021560(A)
申请公布日期
1935.11.19
申请号
US19350022479
申请日期
1935.05.20
申请人
PEDRO LIRA
发明人
LIRA PEDRO
分类号
G03B21/43
主分类号
G03B21/43
代理机构
代理人
主权项
地址
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