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经营范围
发明名称
Improvements in or relating to electrical signalling systems
摘要
申请公布号
GB479884(A)
申请公布日期
1938.02.14
申请号
GB19360022467
申请日期
1936.08.14
申请人
AUTOMATIC ELECTRIC COMPANY LIMITED;FRANK MCCABE;WILLIE SAVILLE
发明人
分类号
B66B19/06
主分类号
B66B19/06
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