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发明名称
Improvements in or relating to carrier signalling systems
摘要
申请公布号
GB473330(A)
申请公布日期
1937.10.06
申请号
GB19360010131
申请日期
1936.04.06
申请人
TELEPHONE MANUFACTURING COMPANY LIMITED;LESLIE HAROLD PADDLE
发明人
分类号
H03C1/58
主分类号
H03C1/58
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