Mast-supported selector tube and carrel in electronic study system
First Claim
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1. IN ELECTRONIC STUDY APPARATUS IN WHICH A PLURALITY OF SPACED-APART SOUND-MODULATED LIGHT BEAM EMITTING SOURCES ARE ARRANGED AT AN ELEVATION IN A STUDY CHAMBER AND A CARREL IN SAID CHAMBER FACES SAID SOURCES, SAID CARREL PROVIDING A DESK AND WING ENCLOSURE FUNCTIONING AS A SOUND BARRIER ON AT LEAST THREE SIDES OF SAID DESK AND BEING PROVIDED WITH AN INSTRUMENT ON SAID DESK HAVING ELECTRICAL CONNECTIONS FOR REPRODUCING IN SOUND LIGHT BEAMS FROM SAID SOURCES, THE IMPROVEMENT WHICH COMPRISES MOUNTING A SELECTOR TUBE ON A MAST SUPPORTED BY
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1 Claim
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1. IN ELECTRONIC STUDY APPARATUS IN WHICH A PLURALITY OF SPACED-APART SOUND-MODULATED LIGHT BEAM EMITTING SOURCES ARE ARRANGED AT AN ELEVATION IN A STUDY CHAMBER AND A CARREL IN SAID CHAMBER FACES SAID SOURCES, SAID CARREL PROVIDING A DESK AND WING ENCLOSURE FUNCTIONING AS A SOUND BARRIER ON AT LEAST THREE SIDES OF SAID DESK AND BEING PROVIDED WITH AN INSTRUMENT ON SAID DESK HAVING ELECTRICAL CONNECTIONS FOR REPRODUCING IN SOUND LIGHT BEAMS FROM SAID SOURCES, THE IMPROVEMENT WHICH COMPRISES MOUNTING A SELECTOR TUBE ON A MAST SUPPORTED BY
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Current AssigneeBarecki, Chester J., Bror W. Henrikson, William R. Dufendach
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Original AssigneeBarecki, Chester J., Bror W. Henrikson, William R. Dufendach
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InventorsBarecki, Chester J., Henrikson, Bror W., Dufendach, William R.
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Application NumberUS04/437,373Time in Patent Office858 DaysField of SearchUS Class Current398/132CPC Class CodesG09B 5/12 different stations being ca...H04B 10/1149 Arrangements for indoor wir...
