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发明名称
Leer
摘要
申请公布号
US1979662(A)
申请公布日期
1934.11.06
申请号
US19290358562
申请日期
1929.04.27
申请人
HARTFORD-EMPIRE COMPANY
发明人
BETHEL ALBERT R.
分类号
C03B25/06;C03B35/06;C03B35/18
主分类号
C03B25/06
代理机构
代理人
主权项
地址
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