ES74291A1 - Perfeccionamientos en el método de recoger o registrar impulsos de baja frecuencia, por medio del aparato que se describe.
- Google Patents
Perfeccionamientos en el método de recoger o registrar impulsos de baja frecuencia, por medio del aparato que se describe.
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.)
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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Publication date
Application filed by Submarine Signal CofiledCriticalSubmarine Signal Co
Priority to ES74291ApriorityCriticalpatent/ES74291A1/es
Publication of ES74291A1publicationCriticalpatent/ES74291A1/es
ES74291A1920-06-301920-06-30Perfeccionamientos en el método de recoger o registrar impulsos de baja frecuencia, por medio del aparato que se describe.
ExpiredES74291A1
(es)