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DD225836A1
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CIRCUIT ARRANGEMENT OF A TRANSMIT LOW FREQUENCY CALL RECORDER
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DD248237A1
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Circuit arrangement for the digital frequency control of the clock frequency generator of computer-controlled agencies
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DD230742A3
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Process for coating membranes for electric acoustic converters
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DD224133A1
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Circuit arrangement for input out by direct memory access in microrechners
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DD239498A1
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Fork switching for a baseband transmission device
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DD225585A1
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Circuit arrangement for two-wire four-wire implementation
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DD223591A1
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Circuit arrangement of a semiconductor amplifier double contact with improved efficiency
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DD215215A1
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Circuit arrangement for generating the key compatibility 0.5 rectangular output tactical signals
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DD214736A1
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Circuit arrangement for an integrated electronic switch
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DD214735A1
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Circuit arrangement for a semiconductor switch bidirectional in bipolar technology
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DD214017A1
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Arrangement for determining the deep-request absorbing capacity of recording devices
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DD212376A1
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Digital receiver for PCM multi-frequency code characters
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DD211916A1
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Circuit arrangement for the potential-free power supply of a participant connection circuit
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DD211519A1
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Clichee for pad printing
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DD210798A1
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Fork circuit with automatic adjustment of backflow cleaning
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DD211029A1
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Echo compensation device for duplex transmission on two-wire connecting lines
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DD210146A1
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On-limiting current limit switchgear
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GR62415B
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Circuit disposition for recognition and estimation of connections to telephone conduits
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GR62414B
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Circuit disposition for voltage limitation to transistor of switches at break of inductive loads
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GR62410B
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Circuit disposition for control circuits in installations of tele-transmission especially of telephony
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