DK27563C -
Device for automatic switching on and off of gas burners, candelabra and other gas lighting devices at predetermined times.
- Google Patents
Device for automatic switching on and off of gas burners, candelabra and other gas lighting devices at predetermined times.
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Publication of DK27563CpublicationCriticalpatent/DK27563C/en
DK27563D1913-09-061919-12-31
Device for automatic switching on and off of gas burners, candelabra and other gas lighting devices at predetermined times.
DK27563C
(en)