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发明名称
Suspending device for calendars and like articles
摘要
申请公布号
US1788591(A)
申请公布日期
1931.01.13
申请号
US19290344836
申请日期
1929.03.06
申请人
OSCAR REGEN
发明人
REGEN OSCAR
分类号
A47G1/16
主分类号
A47G1/16
代理机构
代理人
主权项
地址
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