ES65546A1 - Un procedimiento y aparatos para encender y apagar instantánea y simultáneamente los mecheros de gas del alumbrado público.
- Google Patents
Un procedimiento y aparatos para encender y apagar instantánea y simultáneamente los mecheros de gas del alumbrado público.
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ES65546A1917-10-161917-10-16Un procedimiento y aparatos para encender y apagar instantánea y simultáneamente los mecheros de gas del alumbrado público.
ExpiredES65546A1
(es)
Un procedimiento, con el dispositivo correspondiente, para calentar, a elección, los hornos productores de gas con gas del generador o con gas del alumbrado.