Grading system

Details Grading system Grading system

1987-04-28

1989-02-21

Lall, Parshotam S.

Boots, shoes, and leggings

37DIG1, 37DIG20, 172 45, E02F 376

Patent

active

048071315

ABSTRACT:
A fully automated earthgrading machine and system is disclosed.

REFERENCES:
patent: 4162708 (1979-07-01), Johnson
patent: 4244123 (1981-01-01), Lazure et al.
patent: 4273196 (1981-06-01), Etsusaki et al.
patent: 4299290 (1981-11-01), Nunes, Jr.
patent: 4402368 (1983-09-01), Moberly
patent: 4413684 (1983-11-01), Duncklee
patent: 4537259 (1985-08-01), Funabashi et al.
patent: 4677555 (1987-06-01), Goyet
patent: 4700301 (1987-10-01), Dyke

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