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United States of America Patent
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Jul 28, 1987
Grant Date -
N/A
app pub date -
Nov 19, 1981
filing date -
Nov 19, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus which detects when particles being dispensed into a development system have been depleted and provides a display of that condition. The apparatus advances particles from a store thereof to the development system. A detector, associated with the particle advancer, senses the exhaustion of particles being advanced to the development system.
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