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发明名称
FILM POSITION AND BREAK DETECTOR
摘要
申请公布号
GB1221899(A)
申请公布日期
1971.02.10
申请号
GB19690042658
申请日期
1969.08.27
申请人
SINGER-GENERAL PRECISION, INC.
发明人
分类号
G03B19/18;G03B21/42;G09B9/30
主分类号
G03B19/18
代理机构
代理人
主权项
地址
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