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经营范围
发明名称
Crystalline optical fiber and its method of manufacture
摘要
申请公布号
US4978376(A)
申请公布日期
1990.12.18
申请号
US19890336626
申请日期
1989.04.10
申请人
SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人
TAKAHASHI, KENICHI;YOSHIDA, NORIYUKI
分类号
B29C47/00;C03B37/023;C03C13/00;C30B33/00;G02B6/02
主分类号
B29C47/00
代理机构
代理人
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地址
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