Machines not elsewhere specified – Material working – abrading – or founding machinery – Deforming or crushing
Patent
1983-02-11
1986-09-23
Bullock, B. J.
Machines not elsewhere specified
Material working, abrading, or founding machinery
Deforming or crushing
D15136
Patent
active
D02857960
REFERENCES:
patent: 52202 (1866-01-01), Rand
patent: 445732 (1891-02-01), Oldham
patent: 4201128 (1980-05-01), Whitehead
patent: 4291064 (1981-09-01), Retzlaff
patent: 4450764 (1984-05-01), Montgomery
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