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发明名称
Method of making lamp base ferrules
摘要
申请公布号
US2264613(A)
申请公布日期
1941.12.02
申请号
US19380243753
申请日期
1938.12.03
申请人
ASSOCIATED PATENTEES, INC.
发明人
BORTON ALWYN E.
分类号
B21C37/08;B21D51/00;B21D51/28
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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