Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Leonard Reiffel0
Date of Patent
November 21, 2006
0Patent Application Number
102037350
Date Filed
March 21, 2000
0Patent Primary Examiner
Patent abstract
The apparatus uses retro-reflected light, having a fixed component (41) and a variable component (37) varied by a person, from a retro reflector (31) connected to a person to input data (37A) to an information system (13) and does this for each of several persons in the same time interval.
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