Machines not elsewhere specified – Agricultural or construction machinery – Drilling – mining – or soil treatment
Patent
1985-11-12
1989-03-07
Dunkins, Bruce W.
Machines not elsewhere specified
Agricultural or construction machinery
Drilling, mining, or soil treatment
Patent
active
D03001431
REFERENCES:
patent: D116341 (1939-08-01), Hedin
patent: 1630602 (1927-05-01), Blanco
patent: 3052310 (1962-09-01), Kinzbach
patent: 3967689 (1976-07-01), Cherrington
patent: 4562608 (1986-01-01), Weir
Dunkins Bruce W.
McHugh Charles W.
Takemoto Ruth
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