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发明名称
Improvements relating to automatic telephone exchange systems
摘要
申请公布号
GB952832(A)
申请公布日期
1964.03.18
申请号
GB19600001772
申请日期
1960.01.18
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
LONG DOUGLAS PERCY;CARTWRIGHT JOHN CONRAD;MARSHALL JOHN HERBERT
分类号
H04Q3/62
主分类号
H04Q3/62
代理机构
代理人
主权项
地址
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METHOD OF ELECTROPOLISHING
AIR WHISTLE
SEAT BACK ADJUSTING MEANS
TELEPHONE SUBSETS
ISOLATION OF STEROLS
METHOD OF MAKING BROAD AREA SEMI-CONDUCTOR DEVICES
PNEUMATIC CONVEYING SYSTEMS
ACRYLIC INTERPOLYMERS AND SUBSTRATES COATED THEREWITH
ISOMERIC POLYCHLOROPYRAZINES AND PREPARATION THEREOF
RESIN COMPOSITION CONTAINING AMINOPLAST RESIN AND AN ACID ADDUCT
GASTIGHT ENCLOSED ALKALINE ACCUMULATORS
DUAL MAGNIFICATION BINOCULARS
TABLE
WELL DRILLING BIT
