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
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Ingersoll Rand Co
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Publication date
Application filed by Ingersoll Rand CofiledCriticalIngersoll Rand Co
Application grantedgrantedCritical
Publication of FR797036ApublicationCriticalpatent/FR797036A/fr
E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
E04G21/08—Internal vibrators, e.g. needle vibrators
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Engineering & Computer Science
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Architecture
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Civil Engineering
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Structural Engineering
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FR797036D1935-10-291935-10-29Dispositif pour effectuer la vibration interne du béton
ExpiredFR797036A
(fr)