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经营范围
发明名称
Process for treating pitch
摘要
申请公布号
US2310193(A)
申请公布日期
1943.02.02
申请号
US19410392558
申请日期
1941.05.08
申请人
SOUTHERN WOOD PRESERVING COMPANY
发明人
JR. JACQUELIN E. HARVEY,
分类号
C10C1/20
主分类号
C10C1/20
代理机构
代理人
主权项
地址
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