Portable telephone communication device for the hearing impaired
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United States of America Patent
Stats
-
May 19, 1981
Grant Date -
N/A
app pub date -
May 2, 1977
filing date -
May 2, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A portable telephone communications device for the hearing impaired can be carried in the pocket of the user and attaches directly to the telephone handset without intrusion. It includes a keyboard and a readout which enables the user to transmit data by means of the keyboard and receive data which is presented on either an electronic display or a printer or both.
First Claim
Family
International Classification(s)
Cited Art Landscape
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