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.)
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Joh Friedr Wallmann & Co
Original Assignee
Joh Friedr Wallmann & Co
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Filing date
Publication date
Application filed by Joh Friedr Wallmann & CofiledCriticalJoh Friedr Wallmann & Co
Priority to ES23363ApriorityCriticalpatent/ES23363A1/es
Publication of ES23363A1publicationCriticalpatent/ES23363A1/es
Un procedimiento para fabricar unas bolitas fulminantes que, por medio de un aparato especial que se describe, sirven para encender automáticamente los mecheros de incandescencia por el gas, apagándose dichas bolitas también automáticamente.