E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
E02D 31/00 (2006.01) A01B 45/00 (2006.01)
Patent
CA 2603648
A method for filling ducts which open onto the surface of the ground, such as drainage ducts and/or aeration ducts in a field of grass, with a granular material, such as sand, comprising the steps of: - providing a covering comprising openings, - arranging the covering on the ground, - producing ducts in the ground, - pouring granular material onto the covering, - introducing the granular material into the openings in the covering so that it flows into the ducts.
Bolk Henricus Johannes Nicolaas Antonius
Meijerhof Jacobus Cornelis
Reulink Frans Hendrikus
Heijmans Infrastructuur B.v.
Smart & Biggar
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