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发明名称
摘要
申请公布号
DE2540349(B2)
申请公布日期
1978.11.16
申请号
DE19752540349
申请日期
1975.09.10
申请人
HITACHI, LTD., TOKIO
发明人
NAKAGOMI, YOSHIYUKI, KODAIRA, TOKIO (JAPAN)
分类号
H03F3/45;(IPC1-7):H03F3/45
主分类号
H03F3/45
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