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发明名称
Improvements in or relating to methods of Converting Pulsetrains
摘要
申请公布号
GB1196549(A)
申请公布日期
1970.06.24
申请号
GB19680045882
申请日期
1968.09.27
申请人
SIEMENS AKTIENGESELLSCHAFT
发明人
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
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