Excavating – Ditch filler
Patent
1990-08-30
1991-12-03
Taylor, Dennis L.
Excavating
Ditch filler
37141T, 37142R, 299 92, 403379, E02F 928, E21B 1062
Patent
active
050689860
ABSTRACT:
An excavating tooth point having a pin receiving opening, a cavity in the point in communication with the opening and a resilient lock for the pin in the cavity.
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patent: 4716668 (1988-01-01), Hahn
patent: 4727663 (1988-03-01), Hahn
ESCO Corporation
Taylor Dennis L.
Warnick Spencer
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