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Publication numberUSD221663 S
Publication typeGrant
Publication dateAug 31, 1971
Filing dateJul 13, 1970
Publication numberUS D221663 S, US D221663S, US-S-D221663, USD221663 S, USD221663S
InventorsYoshio Ishiwata
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electronic calculator
US D221663 S
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Description  (OCR text may contain errors)

United States Patent 0 ice Des. 221,663 Patented Aug. 31, 1971 ELECTRONIC CALCULATOR Yoshio Ishiwata, Tokyo, Japan, assignor to Takachiho Koeki Kabushiki Kaish a, Komatsubara-machi, Kita-ku,

Osaka-shi, Japan Filed July 13, 1970, Ser. No. 23,935

Claims priority, application Japan Jan. 14, 1970 Term of patent 14 years Int. Cl. D14-02 US. Cl. D26-5 Des. 221,663

PAGE 2 FIG. 1 is a left, top perspective view of an electronic References Cited calculator showing my new design.

FIG. 2 is a right-bottom perspective view thereof. UNITED ST'ATES PATEN rs FIG, 3 is a top plan View th f D. 203,989 3/ 1966 Wiggerrnan D265 .4 FIG. 4 is a rear view thereof, D- 216,889 3/1970 Staley D2654 Z t M f t 1 1 b OTHER REFERENCES g iigz ggg j eslgn or an 6 cc mmc ca cu ator Sn Industrial Design, January 1962, p. 73, Item No. 3.

EDWIN H. HUNTER, Primary Examiner L. J. PERLSTEIN, Assistant Examiner