Drainage device

Details Drainage device Drainage device

E - Fixed Constructions

02

B

61/32

E02B 11/00 (2006.01) E02D 3/10 (2006.01)

Patent

CA 1199188

ABSTRACT Drainage devices for sub-terranean drainage, the devices comprising a core of cuspated plastics sheet material covered by a web of geotextile. The devices are made in sheet or strip form and specific examples of applications are disclosed. Methods of manufacture of the devices in sheet and strip form are disclosed.

420921

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