Lighted telephone dial

Details Lighted telephone dial Lighted telephone dial

H - Electricity

04

M

379/94

H04M 1/22 (2006.01)

Patent

CA 1145870

LIGHTED TELEPHONE DIAL Abstract of the Disclosure A pushbutton dial having pushbuttons arranged in three columns and four rows has the buttons illuminated by four LED's positioned in a light-guide plate having apertures which surround the pushbuttons. The LED's are in recesses at intersections of the outer columns and top and bottom rows, each recess between four adjacent apertures. Guide grooves at the edges of the plate redirect light issuing from the LED's and passing between apertures. The plate is transparent and the buttons translucent, the buttons being illuminated from all round their peripheries.

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