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发明名称
Apparatus for forming lamp filaments
摘要
申请公布号
US2759498(A)
申请公布日期
1956.08.21
申请号
US19530360496
申请日期
1953.06.09
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
MANN OLIVER;THOMAS RALPH B.
分类号
H01K3/04
主分类号
H01K3/04
代理机构
代理人
主权项
地址
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