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发明名称
PRODUCTION OF CHAR
摘要
申请公布号
US3471369(A)
申请公布日期
1969.10.07
申请号
USD3471369
申请日期
1968.01.08
申请人
SUBURBAN MECHANICAL CONTRACTORS INC.
发明人
ARTHUR S. COX;JOHN H. TAGGART
分类号
C10B47/44;C10B53/00;C10B53/02;(IPC1-7):C10B1/00;C10B7/10
主分类号
C10B47/44
代理机构
代理人
主权项
地址
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