Boots – shoes – and leggings
Patent
1976-01-12
1977-12-13
Claffy, Kathleen H.
Boots, shoes, and leggings
179 90AN, 179 2DP, 364705, 364708, H04M 121
Patent
active
040630463
ABSTRACT:
A calculator adapted to be used with a push button telephone having an array of telephone push buttons for serving both as a calculator and as an enlarger for the push buttons to facilitate the actuation of them, includes a first array of finger discs corresponding to at least some of the telephone push buttons and extending from a cup-shaped housing having an open mouth adapted to fit over the array of telephone push buttons, the first array of finger discs enabling the user to actuate the telephone push buttons. Logic circuits are mounted within the housing for performing mathematical calculations, and a display device mounted on the housing responds to the logic circuits for indicating information concerning the calculations. A first set of switches are mounted on the housing and respond to the finger discs for causing the generation of input information for the logic circuits. A second array of finger discs bear calculating indicia on their front faces and, when depressed by the user, close a second set of switches for causing additional input information to be generated for the logic circuits.
REFERENCES:
patent: 3739105 (1973-06-01), Anson
patent: 3760121 (1973-09-01), Nissim
patent: 3778553 (1973-12-01), Rackman
patent: 3920926 (1975-11-01), Lenaerts et al.
patent: 3932709 (1976-01-01), Hoff et al.
Kleinke Bernard L.
Schiffman Jerome D.
Brigance Gerald L.
Claffy Kathleen H.
Kleinke Bernard L.
Schiffman Jerome D.
Shlaes Milton
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