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发明名称
Copyholder for typewriters and bookholders
摘要
申请公布号
US2036580(A)
申请公布日期
1936.04.07
申请号
US19340714666
申请日期
1934.03.08
申请人
PAUL KOBLER
发明人
KOBLER PAUL
分类号
B41J29/15
主分类号
B41J29/15
代理机构
代理人
主权项
地址
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