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发明名称
Roof deck
摘要
申请公布号
US2832300(A)
申请公布日期
1958.04.29
申请号
US19550479390
申请日期
1955.01.03
申请人
JACOBSON ARTHUR L
发明人
JACOBSON ARTHUR L.
分类号
E04D3/30;E04D13/16
主分类号
E04D3/30
代理机构
代理人
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