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Joly Firmin Marius
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Joly Firmin Marius
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Priority to ES1396ApriorityCriticalpatent/ES1396A1/en
Publication of ES1396A1publicationCriticalpatent/ES1396A1/en
A procedure for the application of tungsten and similar metals, in substitution of platinum, to the contacts of the switches of the magnets for the ignition of combustion engines.
An industrial result that consists of spark plugs made from a mixture of paraffin and blanquet that will be called "Finuet", which largely replaces stearin.