Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1977-04-13
1980-01-22
Caldwell, Sr., John W.
Communications: electrical
Condition responsive indicating system
Specific condition
221 6, 222 39, 340674, G08B 2100
Patent
active
041852249
ABSTRACT:
Invention herein is an alarm system for product distribution systems. This system is designed to alert the operator of the distribution system in the event there is a blockage in the system or that the system may be empty and further simultaneously indicate at which distribution point the malfunction occurred.
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patent: 3927400 (1975-12-01), Knepler
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Caldwell Sr. John W.
Johnston II H. Kenneth
Nowicki Joseph E.
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