GB690453A - Improvements in or relating to circuit-arrangements for use in automatic signalling systems for adjusting a group selector
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Improvements in or relating to circuit-arrangements for use in automatic signalling systems for adjusting a group selector
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Philips Electrical Industries Ltd
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Philips Electrical Industries Ltd
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Publication date
Application filed by Philips Electrical Industries LtdfiledCriticalPhilips Electrical Industries Ltd
Publication of GB690453ApublicationCriticalpatent/GB690453A/en
GB8825/51A1950-04-191951-04-16Improvements in or relating to circuit-arrangements for use in automatic signalling systems for adjusting a group selector
ExpiredGB690453A
(en)
Switching system for establishing a number of connections by means of one or more multiple switches, for example, for use inan automatic telephone exchange orthe like