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发明名称
LAMP FILAMENT AND MANUFACTURE THEREOF
摘要
申请公布号
JPH05166497(A)
申请公布日期
1993.07.02
申请号
JP19910351011
申请日期
1991.12.10
申请人
NIPPON TUNGSTEN CO LTD;TOMASU SUPAIRARU KOGYOSHO:KK
发明人
FUJII KOJI;YAMAMOTO HIROSHI;NAKASEKO TAKESHI
分类号
B21F3/04;C22C27/04;H01J9/02;H01K1/14;H01K3/02
主分类号
B21F3/04
代理机构
代理人
主权项
地址
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