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发明名称
PULSE GENERATING CIRCUIT
摘要
申请公布号
JPH0321149(A)
申请公布日期
1991.01.29
申请号
JP19890154561
申请日期
1989.06.19
申请人
HITACHI LTD
发明人
AKIYAMA HIROKI;NISHIHARA TATSUYA
分类号
H04M3/02;H03K21/40;H03K23/66;H04M1/00
主分类号
H04M3/02
代理机构
代理人
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地址
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