Object identifying apparatus
First Claim
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1. AN OBJECT IDENTIFYING APPARATUS COMPRISING SIGNAL REFLECTING MEANS INCLUDING A PIEZOELECTRIC ELEMENT AND AN ACOUSTIC DELAY LINE HAVING A LENGTH OF SONIC TRANSMITTING MATERIAL WITH REFLECTING ELEMENTS THEREIN AT SPACED LOCATIONS CORRESPONDING TO PREDETERMINED CODING REPRESENTATIVE OF THE IDENTITY OF SAID OBJECT, SAID DELAY LINE BEING MUTUALLY COUPLED TO SAID ELEMENT, MEANS FOR TRANSMITTING
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1 Claim
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1. AN OBJECT IDENTIFYING APPARATUS COMPRISING SIGNAL REFLECTING MEANS INCLUDING A PIEZOELECTRIC ELEMENT AND AN ACOUSTIC DELAY LINE HAVING A LENGTH OF SONIC TRANSMITTING MATERIAL WITH REFLECTING ELEMENTS THEREIN AT SPACED LOCATIONS CORRESPONDING TO PREDETERMINED CODING REPRESENTATIVE OF THE IDENTITY OF SAID OBJECT, SAID DELAY LINE BEING MUTUALLY COUPLED TO SAID ELEMENT, MEANS FOR TRANSMITTING
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Current AssigneeHurwitz J.R. Henry
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Original AssigneeHurwitz J.R. Henry
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InventorsHURWITZ JR HENRY
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Application NumberUS04/388,243Time in Patent Office767 DaysField of SearchUS Class Current342/51CPC Class CodesB61L 25/04 Indicating or recording tra...G01S 13/75 using transponders powered ...G01S 13/755 using delay lines, e.g. aco...
