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发明名称
Double memorandum book
摘要
申请公布号
US1913818(A)
申请公布日期
1933.06.13
申请号
US19320585405
申请日期
1932.01.08
申请人
PETRICK KURT M
发明人
PETRICK KURT M.
分类号
B42D1/00;B42D3/10
主分类号
B42D1/00
代理机构
代理人
主权项
地址
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