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经营范围
发明名称
PHASE DIFFERENCE PLATE AND PRODUCTION THEREOF
摘要
申请公布号
JPH0321902(A)
申请公布日期
1991.01.30
申请号
JP19890154626
申请日期
1989.06.19
申请人
TOKUYAMA SODA CO LTD
发明人
KAMURA MITSUO;UEDA NAOKI;TABUSE HIROSHI
分类号
G02B5/30
主分类号
G02B5/30
代理机构
代理人
主权项
地址
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