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Individual
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Individual
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Priority to ES6168ApriorityCriticalpatent/ES6168A1/en
Publication of ES6168A1publicationCriticalpatent/ES6168A1/en
ES6168A1886-08-051886-08-05
Improvements in electric batteries, adapted to be used with incandescent electric light and other uses.
ExpiredES6168A1
(en)
An Improvement on the Round Pipes in and in connexion with the Warming of Churches, Chapels, Conservatories, or other Buildings where required to be Heated on the Low Pressure or Circulating System.