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Expired
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Heinrich Schneider
Peter Daniel Horn
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Individual
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Publication of GB190418374ApublicationCriticalpatent/GB190418374A/en
Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings
(AREA)
Abstract
18,374. Schneider, H., and Horn, P. D. Aug. 24. Drawings to Specification. Water levels, indicating.-When the supply of water in a vessel connected with a plant or flower box falls below a certain level, a metal plate attached to a float completes an electric circuit and thus rings a bell.
GB190418374D1904-08-241904-08-24A New or Improved Plant-box.
ExpiredGB190418374A
(en)