Control apparatus for a typing/reading aid device

Details Control apparatus for a typing/reading aid device Control apparatus for a typing/reading aid device

1992-09-02

1993-08-24

Wiecking, David A.

Typewriting machines

Means auxiliary to typewriting function

Attachment for holding an article

4007182, 40352, B41J 2915

Patent

active

052383180

ABSTRACT:
A control apparatus for a typing/reading aid device controls a ruler to move along a frame board in steps according to a user-defined line-space unit set by a plurality of switches. The control apparatus is also allowed to be connected between a keyboard and a computer, thus permitting a user to define some function keys on the keyboard to control the movement of the ruler on the frame board.

REFERENCES:
patent: 3713525 (1973-01-01), Troing
patent: 3763989 (1973-10-01), Goldman
patent: 4043064 (1977-08-01), Friedman
patent: 5040913 (1991-08-01), Folkens et al.

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