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Publication numberUSD256252 S
Publication typeGrant
Application numberUS 05/968,947
Publication dateAug 5, 1980
Filing dateDec 13, 1978
Publication number05968947, 968947, US D256252 S, US D256252S, US-S-D256252, USD256252 S, USD256252S
InventorsMichael D. Burridge
Original AssigneeEssex Transducers Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US D256252 S
Abstract  available in
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  1. The ornamental design for a keyboard, substantially as shown and described.

FIG. 1 is a perspective view of a keyboard showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a sectional view taken along line 4--4 in FIG. 2.

Non-Patent Citations
1Popular Science, Sep. 1977, p. 26-T.I. Data Clip Calculator at center right.
2The Office, Mar. 1965, p. 106-left Keyboard on Burroughs J700.
U.S. ClassificationD18/12, D18/7