Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD223431 S
Publication typeGrant
Publication dateApr 18, 1972
Filing dateDec 9, 1970
Publication numberUS D223431 S, US D223431S, US-S-D223431, USD223431 S, USD223431S
InventorsDan C. Muessel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric control key
US D223431 S
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Ofiice Des. 223,431

Patented Apr. 18, 1972 ELECTRIC CONTROL KEY Dan C. Muessel, Stamford, Conn., and William Eisenreich, White Plains, N.Y., assignors to Eaton Yale & Towne Inc., Cleveland, Ohio Filed Dec. 9, 1970, Ser. No. 26,367

Term of patent 14 years Int. Cl. D8-06' U.S. Cl. D8136 il i References Cited UNITED STATES PATENTS D. 213,587 3/1969 -Unter D8--136 3,392,558 7/1968 Hedin et a1. 317134 X 3,283,550 11/1966 Bradway.

WALLACE R. BURKE, Primary Examiner A. P. DOUGLAS, Assistant Examiner