System for issuing tickets

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4945213
SERIAL NO

07191933

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a system for issuing tickets and including means for delivering a warning signal when the remaining stock of paper falls below a given number of tickets. To do this, a strip (6) has a special mark on it together reference marks delimiting a length of strip corresponding to one ticket. A sensor (24) detects the passage of the special mark and loads a counter (40). Each time a reference mark goes past the sensor, the contents of the counter (40) is decremented. When a comparator (42) detects that the contents of the counter has reached a predetermined value, it delivers the warning signal.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER INDUSTRIESF-92120 MONTROUGE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Didiergeorge, Pierre Besancon, FR 2 15

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