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发明名称
Improvements in or relating to spring supports for plunge coil driving systems of sound film shutters
摘要
申请公布号
GB502546(A)
申请公布日期
1939.03.20
申请号
GB19370016289
申请日期
1937.06.11
申请人
KLANGFILM G.M.B.H.
发明人
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
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