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发明名称
Spring mechanism for automatically transporting roll films
摘要
申请公布号
US2940682(A)
申请公布日期
1960.06.14
申请号
US19560561380
申请日期
1956.01.25
申请人
RUDOLF STEINECK
发明人
STEINECK RUDOLF
分类号
G03B17/30
主分类号
G03B17/30
代理机构
代理人
主权项
地址
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