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发明名称
Petroleum resin and proces of making same
摘要
申请公布号
US2114796(A)
申请公布日期
1938.04.19
申请号
US19350049267
申请日期
1935.11.11
申请人
CRAWLEY EVERETT H
发明人
CRAWLEY EVERETT H.
分类号
C08F10/00
主分类号
C08F10/00
代理机构
代理人
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地址
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