Plant husbandry – Ornamental beds
Patent
1992-06-05
1994-02-22
Neuder, William P.
Plant husbandry
Ornamental beds
47 83, 404 36, A01G 902, E01C 520
Patent
active
052876497
ABSTRACT:
A grid plate is comprised of a base and vertical one piece side walls which form chambers open to the top, the bottom of each chamber being provided with a drainage hole and the bottom having projections on a plate rim which protrude beyond the rim of the grid plate and grip the bottom area of an adjacent grid plate, the plate rim of the grid plate intersecting at least every second rim-bordering chamber, the chambers forming additional chambers with side walls of adjacent grid plates and the side walls of a pair of grid plates only coming into contact along their vertical edges.
REFERENCES:
patent: 4111585 (1978-09-01), Mascaro
patent: 4118892 (1978-10-01), Nakamura et al.
patent: 4621942 (1986-11-01), Hill
patent: 4671699 (1987-06-01), Roach
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