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BG42146A1
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System for tranmission and receiving of speech by monochannel retranslation
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BG39290A1
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System for selective calling on subscriber radio station from central radio station
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BG39268A1
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Method for obtaining radiolocation information
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BG35454A1
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Quartz stabilized generator
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BG35456A1
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Method and device for switching on a researve radioemitting tract
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BG35314A1
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Radiomodem
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BG35313A1
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Radiocontrolled device
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BG33857A1
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Square transducer of tension- frequensy
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BG34325A1
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Device for synchronizing and restitution of an impulse series
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BG32708A1
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Twocanal retranslator
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BG32256A1
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Apparatus for recovering of impulse series
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BG34750A1
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Method and system for radiocommunication by monochannel retranslation
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BG30609A1
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Method and system for radio communication by one canal retranslation
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BG26178A1
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Method for radio communication throgh active retranslator
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BG23712A1
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Method of detecting and identifying moving objects with aid of waveguide systems
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BG23873A1
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Excitation device of single-wire line
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