Method and circuit arrangement for making local subscriber's tariff counter
HU209026B
Circuit arrangement for carrying out high impedancy electronic power supply bridge
HU900699D0
Circuit arrangement for continuous operating wrightable and readable memory of a controller with microprocessor in awith stored program control telecommunication apparatus
HU900698D0
Method and circuit arrangement for carrying out commands of an indirect commands containing controller with double command set, in a with stored program control working telecommucation apparatus
HU896025D0
Circuit arrangement for realizing branching of party-line networks
HU895251D0
Circuit arrangement for realizing low capacithy stored program controlled sub-exchange
HUT54826A
Method for making multipont connection strip provided with noble metal in the contact points
HUT53750A
Circuit arrangement for installing automatic telephone stations on voice-frequency channels, favourably for switching exchanges operating with stored program control
HUT53564A
Feeding device for placing-out cut and kept-in-band plate details expediently plate springs after the cutting-down from band in position of optional spacing
HUT52658A
Circuit arrangement fr metering the time-parametes of dial-pulses in telephone apparatuses
HUT51390A
Circuit arrangement for measuring the output impedance of non-linear circuits
HUT51066A
Circuit arrangement for realizing distance conference conversations through a telephone network
HUT51056A
High-stability variable corrector for correcting high transit time
HUT49974A
Circuit arrangement for decentralised controlling telephone technic circuits according to the stored program
DD265038A5
Circuit arrangement for generating signals with any spectrum
HUT48416A
Circuit arrangement for reducing input or output reflection of the broad band amplifier modules
GB8713757D0
Control system of telephone exchanges
HUT46830A
Circuit arrangement for developing digital conference circuit of pcm system
HUT46831A
Circuit arrangement for storing and displaying individual counting pulses, in particular for operator's boards of central exchanges
HUT46492A
Circuit arrangement for receiving and evaluating pulse width modulated signals, in particular to party line dispatcher systems
