Machines not elsewhere specified – Agricultural or construction machinery – Drilling – mining – or soil treatment
Patent
1984-12-18
1987-07-28
Bullock, B. J.
Machines not elsewhere specified
Agricultural or construction machinery
Drilling, mining, or soil treatment
D 8 70, D15138
Patent
active
D02910870
REFERENCES:
patent: D250874 (1979-01-01), D'Haem
patent: D282666 (1986-02-01), Salmi et al.
patent: 3517754 (1970-06-01), Hughes
patent: 4629375 (1986-12-01), Lieser
Muuttonen Timo
Salmi Pekka
Bullock B. J.
OY Tampella AB
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