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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James David Arthur0
Date of Patent
August 15, 2006
0Patent Application Number
108608140
Date Filed
June 4, 2004
0Patent Primary Examiner
Patent abstract
An electrical switch comprising a helical spring, progressively compressed onto concentric annular contacts, provides a mechanism for operating a portable light or other devices, and for engaging multiple modes of operation of said device(s), for example a portable electronic flashlight.
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