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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Filing date
Publication date
Application filed by Ingersoll Rand CofiledCriticalIngersoll Rand Co
Application grantedgrantedCritical
Publication of FR665873ApublicationCriticalpatent/FR665873A/fr
B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
FR665873D1928-03-031928-12-14Dispositif de rappel de la mèche dans les perforatrices
ExpiredFR665873A
(fr)