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1.3. rezultāts no 77.
414. lappuse
All of the foregoing factors have changed the telecommunication environment and this is really the challenge facing the World Administrative Telegraph and Telephone Conference in 1988 which is charged with providing a broad regulatory ...
All of the foregoing factors have changed the telecommunication environment and this is really the challenge facing the World Administrative Telegraph and Telephone Conference in 1988 which is charged with providing a broad regulatory ...
460. lappuse
The practical unit which would constitute the best outstation electric telegraph with the least weight and volume . The apparatus used can be telegraph or telephone ( including the transmitter , the receiver and the line ) . 20.
The practical unit which would constitute the best outstation electric telegraph with the least weight and volume . The apparatus used can be telegraph or telephone ( including the transmitter , the receiver and the line ) . 20.
596. lappuse
Underground telegraph lines . -At the 26 May meeting of the London Society of Telegraph and Electrical Engineers , Mr Charles Thomas Fleetwood presented a very interesting report on underground telegraph lines . According to his account ...
Underground telegraph lines . -At the 26 May meeting of the London Society of Telegraph and Electrical Engineers , Mr Charles Thomas Fleetwood presented a very interesting report on underground telegraph lines . According to his account ...
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