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发明名称
PAPER IMPREGNATED WITH AMMONIUM ALUM AND PROCESS OF IMPREGNATING
摘要
申请公布号
CA530981(A)
申请公布日期
1956.09.25
申请号
CAD530981
申请日期
申请人
HIMSELF;ABRAHAM GOLDSTEIN
发明人
IMMANUEL LICHTENSTEIN
分类号
主分类号
代理机构
代理人
主权项
地址
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