U.S. patents available from 1976 to present.
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Patent No. 6293874

User-operated amusement apparatus for kicking the user's buttocks

An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.

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Class 15/104.012 - Piston groove


Subclass of Class 15 - Brushing, scrubbing, and general cleaning
Definition: Subject matter which includes a piston ring slot cleaning
No. of patents: 2
Last issue date: 10/14/2003


NumberTitleIssue Date
6631532Engine block cylinder groove cleaner
An engine block cylinder groove cleaner for cleaning the grooves in the cylinder of a diesel engine. The engine block cylinder groove cleaner includes a main housing comprising a lower portion. A plurality of groove cleaning members each being outwardly e...
10/14/2003
4079477Apparatus for cleaning piston ring grooves
This invention relates to an apparatus for cleaning accumulated carbon and other material from the ring grooves of pistons. The apparatus includes a cylindrical housing adapted to accommodate a piston therein, and a plurality of mutually spaced apart clea...
03/21/1978
 
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