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.)
Birkin William A Court
Original Assignee
Birkin William A Court
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Filing date
Publication date
Application filed by Birkin William A CourtfiledCriticalBirkin William A Court
Priority to ES13226ApriorityCriticalpatent/ES13226A1/es
Publication of ES13226A1publicationCriticalpatent/ES13226A1/es
ES13226A1892-04-221892-04-22Mejoras en los medios empleados para accionar las terrajas de los taladros percusivos y demás aparatos análogos.
ExpiredES13226A1
(es)
Modificaciones introducidas en el aparato para resolver mecánicamente las operaciones del tanto por ciento o por mil llamado "Aritmocrético Palou".