Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Alfred Howard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB191410930ApublicationCriticalpatent/GB191410930A/en
Water Treatment By Electricity Or Magnetism
(AREA)
Abstract
10,930. Howard, A. July 11. Plug couplings.-Pin and socket parts P<1>, N<1> and N<2>, P<1> are provided on each member of a coupling for use with an alternating-current water heater, to ensure that the current impulse' may be always in the same direction.
Improvements in or connected with electrical connecting means for use in association with wireless sets and galvanic batteries and other electrical apparatus requiring periodical charging with electric currents