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Individual
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Individual
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Priority to JP5321875ApriorityCriticalpatent/JPS51130054A/en
Publication of JPS51130054ApublicationCriticalpatent/JPS51130054A/en
PURPOSE: To automatically discharge water accumulated in a manhole appropriately by automatically starting a pump when the water level rises to a point just below a cable.
COPYRIGHT: (C)1976,JPO&Japio
JP5321875A1975-05-061975-05-06Apparatus for starting and stopping a drain pump in a manhol
PendingJPS51130054A
(en)