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经营范围
发明名称
Roofing felt
摘要
申请公布号
US2503454(A)
申请公布日期
1950.04.11
申请号
US19440567444
申请日期
1944.12.09
申请人
JOHNS-MANVILLE CORPORATION
发明人
QUINN ROBERT G.
分类号
D06N5/00
主分类号
D06N5/00
代理机构
代理人
主权项
地址
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