USD224052S - Multiple keyboard unit - Google Patents

Description

United States Patent 0 Des. 224,052 Patented June 27, 1972 MULTIPLE KEYBOARD UNIT Percy Dean Olson, Owatonn Musitronic Inc., 0w

a, Minn., assignor to atonna, Minn Filed Dec. 14, 1970, Ser. No. 26,453 Term of patent 14 years Int. Cl. D17-01 US. Cl. D569 [FILE .2

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Illlll illllll FIG. 1 is a top plan view of a multiple keyboard unit, showing my new design;

FIG. 2 is a side elevational view, the' opposite side being substantially a mirror image thereof; a

FIG. 3 is an end elevational view looking at the right end in FIG. 1; and

FIG. 4 is a left end elevational view, looking at the left end in FIG. 1. Y

I claim: The ornamental design for a multiple keyboard unit, substantially as shown and described.

References Cited UNITED STATES PATENTS D. 220,549 4/1971 Benson D56-9 3,478,159 11/1969 Olson 84-117 JOEL STEARMAN, Primary Examiner W. M. HENRY, Assistant Examiner

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