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SU1596482A1
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Device for receiving pseudorandom signals
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SU1644182A1
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Handwritten character attributes detector
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SU1626443A1
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Subscriberъs module for electronic automatic telephone exchange
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SU1608759A1
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Rejector filter
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SU1598181A2
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Device for protecting two-cable communication line
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SU1599995A1
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Pulse-code modulated-to-delta-modulated signal converter
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SU1566416A1
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Screened cable
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SU1589404A1
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Wire communication and power transmission system
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SU1554013A1
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Device for magnetic recording and reproduction of speech signals
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SU1578838A1
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Redundant terminal module for digital automatic switching systems
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SU1578775A1
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Band-elimination filter
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SU1608814A1
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Device for cyclic timing
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SU1555904A1
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Digital system with distributed control
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SU1755343A1
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Microwave filter
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SU1541651A1
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Device for transmission and reception of information
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SU1596476A1
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Device for synchronizing pseudorandom signals
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SU1580432A1
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Device for magnetic record-reproduction of speech signals
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SU1536513A1
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Device for quality control of communication channel with frequency modulation
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SU1571777A1
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Generator of imitated voice signal
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SU1570005A1
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Device for checking echo suppressor
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