USD216859S - Chain sprocket for a bicycle - Google Patents

Chain sprocket for a bicycle Download PDF

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USD216859S
USD216859S US D216859 S USD216859 S US D216859S
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US
United States
Prior art keywords
bicycle
chain sprocket
united states
sprocket
shimano
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Automotive News
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United States Patent Ofifice Patented $233 3:
CHAIN SPROCKET FOR A BICYCLE Keizo Shimano and Norio Sato, both Shimano Industrial Co., Ltd., 77 3-ch0, ()imatsucho, Sakai, Japan Filed Apr. 11, 1969, Ser. No. 16,684
Term of patent 14 years Int. Cl. D12-14 US. Cl. D9017 Des. 216,859
PAGE 2 FIG.3
References Cited UNITED STATES PATENTS D. 85,591 11/1931 Munson D1430 D. 212,941 12/1968 Van Winsen et a1. D1430 300,737 6/1884 Rowlett 30159 FOREIGN PATENTS 647,754 12/1950 Great Britain.
OTHER REFERENCES Automotive News, Oct. 28, 1963, p. 12, vehicle wheel.
J. PAUL GUERTIN, Primary Examiner

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