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发明名称
Improvements in or relating to the manufacture of gas impermeable materials
摘要
申请公布号
GB373947(A)
申请公布日期
1932.06.02
申请号
GB19310035321
申请日期
1931.12.21
申请人
ROHM & HAAS AKTIENGESELLSCHAFT
发明人
分类号
D06M15/263;D06M15/267
主分类号
D06M15/263
代理机构
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