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发明名称
Paraffin device for treating threads
摘要
申请公布号
US1877663(A)
申请公布日期
1932.09.13
申请号
US19290415851
申请日期
1929.12.21
申请人
AUGUST HOFFMANN
发明人
HOFFMANN AUGUST
分类号
B65H71/00
主分类号
B65H71/00
代理机构
代理人
主权项
地址
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