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发明名称
Tile
摘要
申请公布号
US1832397(A)
申请公布日期
1931.11.17
申请号
US19300490025
申请日期
1930.10.20
申请人
HULTQUIST VICTOR J
发明人
HULTQUIST VICTOR J.
分类号
E04F13/08
主分类号
E04F13/08
代理机构
代理人
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