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发明名称
COPOLIMEROS HIDROSSOLUVEIS ESTAVEIS FACE A ACIDOS SUA PRODUCAO E APLICACAO
摘要
申请公布号
BR8109019(A)
申请公布日期
1983.04.12
申请号
BR19810009019
申请日期
1981.12.14
申请人
CASSELLA AG;ESSER INDUSTRIES INC
发明人
ENGELHARDT FRIEDRICH DR;KOHLEIN KLAUS DR;RIEGEL ULRICH;HALASZ SIGMAR VON DR;DAWSON JEFFREY C;REED ANTHONY R
分类号
E21B43/22;C08F220/56;C08F226/00;C09K8/588;(IPC1-7):E21B43/22
主分类号
E21B43/22
代理机构
代理人
主权项
地址
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