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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Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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Publication date
Application filed by Ingersoll Rand CofiledCriticalIngersoll Rand Co
Application grantedgrantedCritical
Publication of FR430056ApublicationCriticalpatent/FR430056A/fr
B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
B25D9/14—Control devices for the reciprocating piston
B25D9/16—Valve arrangements therefor
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Physics & Mathematics
(AREA)
Fluid Mechanics
(AREA)
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR430056D1911-05-231911-05-23Système de soupape pour perforatrices
ExpiredFR430056A
(fr)