Earth working – Tool – standard or connection – Subsoilers
Patent
1988-08-22
1990-06-12
Burr, Edgar S.
Earth working
Tool, standard or connection
Subsoilers
37142R, 172713, 172772, A01B 1308
Patent
active
049324780
ABSTRACT:
A tooth point for earth working, particularly ripping, which includes a relatively elongated body having rearwardly projecting tongue and recess means which cooperate with complementary tongue and recess means on a ripper shank protector.
REFERENCES:
patent: 3026947 (1962-03-01), Larsen et al.
patent: 3259087 (1966-07-01), Horton
patent: 3268012 (1966-08-01), Ratkowski
patent: 3387668 (1968-06-01), Mathers
patent: 3961788 (1976-06-01), Helton et al.
patent: 4013130 (1977-03-01), Wirt et al.
patent: 4129934 (1978-12-01), Gettman
patent: 4326348 (1982-04-01), Emrich
Burr Edgar S.
Cohen Moshe I.
ESCO Corporation
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