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发明名称
An improved process for the manufacture of water-proof and insulating paper
摘要
申请公布号
GB391350(A)
申请公布日期
1933.04.27
申请号
GB19320021629
申请日期
1932.08.02
申请人
JOHN KNAGGS;JOHN COOPER MARSDEN;PORTALS LIMITED
发明人
分类号
D21H17/22
主分类号
D21H17/22
代理机构
代理人
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地址
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