METHOD OF PREPARATION OF A SURFACING MATERIAL FROM TAR SANDS,申请号CAD675521-传众专利搜索

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发明名称	METHOD OF PREPARATION OF A SURFACING MATERIAL FROM TAR SANDS
摘要
申请公布号	CA675521(A)	申请公布日期	1963.12.03
申请号	CAD675521	申请日期
申请人	ESSO RESEARCH AND ENGINEERING COMPANY	发明人	JOHN A. BICHARD
分类号		主分类号
代理机构		代理人
主权项
地址

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