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发明名称
STEEL JOIST
摘要
申请公布号
CA644753(A)
申请公布日期
1962.07.17
申请号
CAD644753
申请日期
申请人
KURT GESTER
发明人
KURT GESTER
分类号
主分类号
代理机构
代理人
主权项
地址
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