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经营范围
发明名称
Improvements in or relating to circuits for testing polarised telegraph relays
摘要
申请公布号
GB885569(A)
申请公布日期
1961.12.28
申请号
GB19590029723
申请日期
1959.09.01
申请人
AUTOMATIC TELEPHONE & ELECTRIC COMPANY LIMITED
发明人
MACFARLANE ALAN;HUGHES EDWARD PIERCE
分类号
G01R31/327;H04Q1/20
主分类号
G01R31/327
代理机构
代理人
主权项
地址
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