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发明名称
Film exposure timing machine
摘要
申请公布号
US1993958(A)
申请公布日期
1935.03.12
申请号
US19320604599
申请日期
1932.04.11
申请人
PATCO, INC.
发明人
YBARRONDO VINCENT C. DE
分类号
G01J1/42
主分类号
G01J1/42
代理机构
代理人
主权项
地址
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