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发明名称
摘要
申请公布号
DE4032840(C2)
申请公布日期
1991.12.12
申请号
DE19904032840
申请日期
1990.10.16
申请人
SEIKOSHA CO., LTD., TOKIO/TOKYO, JP
发明人
SATO, HIROYUKI;TANAKA, NOBUHIRO;OHSHIMA, KENJI, TOKIO/TOKYO, JP
分类号
G04B19/06;G04B25/06;G04B45/00
主分类号
G04B19/06
代理机构
代理人
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