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发明名称
Weichmacher
摘要
申请公布号
AT178461(B)
申请公布日期
1954.05.10
申请号
ATD178461
申请日期
1952.01.23
申请人
E. F. DREW & CO., INC.
发明人
分类号
主分类号
代理机构
代理人
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