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发明名称
Correspondence unit
摘要
申请公布号
US1915620(A)
申请公布日期
1933.06.27
申请号
US19300467280
申请日期
1930.07.11
申请人
ROWLAND LOUIS H
发明人
ROWLAND LOUIS H.
分类号
A47B87/02
主分类号
A47B87/02
代理机构
代理人
主权项
地址
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