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发明名称
Composition of matter and method of making same
摘要
申请公布号
US2357933(A)
申请公布日期
1944.09.12
申请号
US19430497118
申请日期
1943.08.02
申请人
PETROLITE CORPORATION, LTD.
发明人
GROOTE MELVIN DE;KEISER BERNHARD
分类号
C10G33/04
主分类号
C10G33/04
代理机构
代理人
主权项
地址
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