Keyboard

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.

Patent	Priority	Assignee	Title
1444680,
4029915,	Dec 12 1974	Hoshidenkoseizo Kabushiki Kaisha	Miniaturized calculator keyboard switch assembly having universally pivoted key actuators
D245109,	Dec 10 1975	Canon Kabushiki Kaisha	Desk top calculator with scale

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Dec 13 1978		Essex Transducers Corporation	(assignment on the face of the patent)

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