U.S. patent number D308,668 [Application Number 07/222,238] was granted by the patent office on 1990-06-19 for data communications terminal for deaf and/or deaf-blind persons. This patent grant is currently assigned to British Telecommunications public limited company. Invention is credited to Robert J. Briscoe, Andrew M. Claridge.
United States Patent | D308,668 |
Briscoe , et al. | June 19, 1990 |
Inventors: | Briscoe; Robert J. (Woodbridge, GB2), Claridge; Andrew M. (New Malden, GB2) |
---|---|
Assignee: | British Telecommunications public
limited company (London, GB2) |
Appl. No.: | 07/222,238 |
Filed: | July 21, 1988 |
Jan 21, 1988 [GB] | 1047844 | |||
Current U.S. Class: | D14/391 |
Field of Search: | ;D14/100-117 ;D13/32,38 ;D18/1,7,11,12 ;340/700,706,711,712 ;341/22,23 ;200/5A,5R,6A,6R ;235/145A,145R ;273/148B ;400/473,474,479,485,489 ;364/706-710 |
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