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发明名称
Roof and elements for the construction thereof
摘要
申请公布号
US2015020(A)
申请公布日期
1935.09.17
申请号
US19310522814
申请日期
1931.03.16
申请人
JOHNS-MANVILLE CORPORATION
发明人
ROWE WILLIAM L.
分类号
E04D1/12;E04D1/34
主分类号
E04D1/12
代理机构
代理人
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