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COI synopsis: Telecommunication in the computer age. It usually takes at least fifteen seconds to dial a number on a conventional telephone... double that if you make a mistake first time. The Atlas...
COI synopsis: Another telephone to save time, designed for those who are out of reach of a conventional telephone. This pocketphone is a development of the radio telephone with its own dialling system which...
COI synopsis: Communication, when other systems fail. The most elaborate system of fire alarm bells is only useful if they can be heard. For those who are deaf some other warning is needed, and this device...
COI synopsis: A radio telephone to save time and life. An ambulance is fitted with an electro cardiograph to record the pulses from the heart of an emergency patient. These pulses are printed simultaneously...
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