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发明名称
IMPROVEMENTS RELATING TO PROCESS AND APPARATUS FOR OBTAINING AN ELECTRICAL PULSE FREQUENCY FROM AN ANALOGUE SIGNAL
摘要
申请公布号
GB1204667(A)
申请公布日期
1970.09.09
申请号
GB19670056219
申请日期
1967.12.11
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V.
发明人
分类号
H03M1/00
主分类号
H03M1/00
代理机构
代理人
主权项
地址
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