Unit that reproduces voice saying various words or phrases enables mute person to answer telephone and to carry on limited conversations.
Record-player "voice" for mutes
NASA Tech Briefs ; 2 , 1
1977-06-01
Miscellaneous
No indication
English
TIBKAT | 1.1869,1 - 1.1869,12; mehr nicht digitalisiert
Eine Frage des Mutes - MoMbike Cup 450
Automotive engineering | 2015
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