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发明名称
Vertical index cabinet
摘要
申请公布号
US1926023(A)
申请公布日期
1933.09.12
申请号
US19310582735
申请日期
1931.12.23
申请人
BIRGER AAGAARD
发明人
AAGAARD BIRGER
分类号
G06K21/02
主分类号
G06K21/02
代理机构
代理人
主权项
地址
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