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Daniel Rivard
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Daumeray, FR
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Patents Grants
last 30 patents
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Patent Grant
Motorized road-going vehicle for making trenches in the ground
Patent number
6,718,660
Issue date
Apr 13, 2004
S.D.T.O.
Daniel Rivard
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Mechanized unit for digging a trench and laying elongate objects
Patent number
4,812,078
Issue date
Mar 14, 1989
Ets. Rivard S.A.
Daniel Rivard
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Device for digging trenches
Patent number
4,794,709
Issue date
Jan 3, 1989
Ets. Rivard S.A.
Daniel Rivard
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Trenching wheel, more especially for digging trenches
Patent number
4,768,297
Issue date
Sep 6, 1988
Ets. Rivard S.A.
Daniel Rivard
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
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Patent Application
Motorized road-going vehicle for making trenches in the ground
Publication number
20020139014
Publication date
Oct 3, 2002
Daniel Rivard
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING