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发明名称
BITUMEN PRODUCT
摘要
申请公布号
CA335953(A)
申请公布日期
1933.09.26
申请号
CAD335953
申请日期
申请人
JOHNS-MANVILLE CORPORATION
发明人
HOMER L. ROGERS
分类号
主分类号
代理机构
代理人
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地址
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