E03D 1/18

Cisterns empty when not in action

Official title: Cisterns empty when not in action {, e.g. with pressure tanks, with swivel-mounted cisterns}

E03D1/18 (Cisterns empty when not in action) appears on 6 US grants and 3 published applications in this corpus.

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Granted patents
6
Published applications
3
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1
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12
Latest grant
13 Apr 2021