Data communications terminal for deaf and/or deaf-blind persons

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Description

FIG. 1 is a top, front, right hand side perspective view of a data communications terminal for deaf and/or deaf-blind persons;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left hand side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D249571 September 19, 1978 David et al.
D287854 January 20, 1987 Crews
2972140 February 1961 Hirsch
3230644 January 1966 Irazoqui
3659354 May 1972 Sutherland
3945482 March 23, 1976 Einbinder
4033053 July 5, 1977 Engler
4075621 February 21, 1978 Salmon
4194190 March 18, 1980 Bareau
4201489 May 6, 1980 Zapp
4333097 June 1, 1982 Buric et al.
4473356 September 25, 1984 Fernando et al.
Foreign Patent Documents
2657064 July 1978 DEX
2702730 July 1978 DEX
810470 February 1981 FIX
1443924 July 1972 GBX
1439821 January 1973 GBX
2076743 December 1981 GBX
2153568 August 1985 GBX
0213022 March 1987 GBX
Other references
  • "Dialogos--An Aid for the Deaf-Blind," The Finnish Central Association of the Visually Handicapped, Oct. 21, 1984. "Piezoelectric Braille Module," J. V. Pike--IBM Technical Disclosure Bulletin, vol. 19, No. 4, Sep. 1976. Computer Weekly, May 11, 1978, p. 1-Personal Word Processor, top right corner.
Patent History
Patent number: D301233
Type: Grant
Filed: Apr 1, 1986
Date of Patent: May 23, 1989
Assignee: British Telecommunications public limited company (London)
Inventor: Robert J. Briscoe (Woodbridge)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Freda S. Nunn
Law Firm: Nixon & Vanderhye
Application Number: 6/875,116
Classifications
Current U.S. Class: D14/100