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发明名称
METAL LUMBER
摘要
申请公布号
CA331603(A)
申请公布日期
1933.04.11
申请号
CAD331603
申请日期
申请人
WILLIAM O. SHELDON
发明人
WILLIAM O. SHELDON
分类号
主分类号
代理机构
代理人
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