| http://www.w3.org/ns/prov#value | - BACKGROUND OF THE INVENTIONThe present invention relates to a control knob that incorporates locking provisions which, when operated, serve to inhibit rotation.Such control knobs, well known for some time and for a wide variety of uses and applications especially but not exclusively on engines and machinery, are devices that encompass a usually round crown rim and a disk or spokes-and-hub wheel,wh
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