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Raymond Jean Perraud
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Villeurbanne, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Mining appliance
Patent number
4,395,163
Issue date
Jul 26, 1983
Societe d'Etude et de Construction de Machines pour Toutes Industries S.E.C.O...
Raymond J. Perraud
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Double acting hydraulic jack with an end of stroke device
Patent number
4,326,449
Issue date
Apr 27, 1982
Societe d'Etude et de Construction de Machines pour Toutes Industries S.E.C.O...
Raymond Perraud
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for reaming and collecting dust, for a drilling apparatus
Patent number
4,300,642
Issue date
Nov 17, 1981
Societe d'Etude et de Construction de Machines pour toutes Industries S.E.C.O...
Raymond Perraud
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotary percussion hydraulic drilling machine
Patent number
4,291,771
Issue date
Sep 29, 1981
Societe d'Etude et de Construction de Machines pour Toutes Industries S.E.C.O...
Raymond J. Perraud
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
Process for positioning strengthening rods in mine levels and publi...
Patent number
4,286,899
Issue date
Sep 1, 1981
S.A.E.I. Celite
Alain Benichou
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for injecting cartridges of resin for bolting apparatus
Patent number
4,215,953
Issue date
Aug 5, 1980
Envirotech Corporation
Raymond J. Perraud
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rock-drilling and bolt-setting apparatus
Patent number
4,105,081
Issue date
Aug 8, 1978
Societe d'Etude et de Construction de Machines pour Toutes Industries S.E.C.O...
Raymond Jean Perraud
E21 - EARTH DRILLING MINING