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发明名称
Ringbuchmechanik, deren Ringe durch Druckknoepfe geoeffnet werden
摘要
申请公布号
DE572891(C)
申请公布日期
1933.03.23
申请号
DE1932M121075D
申请日期
1932.09.18
申请人
METALLWARENFABRIK KOLOMAN HANDLER
发明人
分类号
B42F13/26
主分类号
B42F13/26
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代理人
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