Water-soluble resins of the phenol formaldehyde group,申请号US19310515144-传众专利搜索

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发明名称	Water-soluble resins of the phenol formaldehyde group
摘要
申请公布号	US1959433(A)	申请公布日期	1934.05.22
申请号	US19310515144	申请日期	1931.02.11
申请人	LOETSCHER EMIL C	发明人	LOETSCHER EMIL C.
分类号	C08G8/28	主分类号	C08G8/28
代理机构		代理人
主权项
地址

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