Method and device for drainage of borders of all stabilized civi

Details Method and device for drainage of borders of all stabilized civi Method and device for drainage of borders of all stabilized civi

1987-10-01

1989-02-21

Novosad, Stephen J.

Road structure, process, or apparatus

Drain or gutter

404 3, 404 73, 404 75, 404 82, 404107, 405 38, 405 50, 405176, 405179, 210170, 210747, 425 59, 425 62, E01F 500

Patent

active

048060437

ABSTRACT:
A vertical drainage element is constructed and laid in position while at the same time forming a narrow vertical channel in the ground by means of an excavating machine or trencher by performing the following successive operations:

REFERENCES:
patent: 3441140 (1969-04-01), Thurber
patent: 3664137 (1972-05-01), Lett
patent: 4028902 (1977-06-01), Courson et al.
patent: 4332511 (1982-06-01), Bradley et al.
patent: 4379655 (1983-04-01), Brost et al.
patent: 4636112 (1987-01-01), Raviv

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