Machines not elsewhere specified – Lubricator or oil collector.
Patent
1992-04-06
1993-11-09
Douglas, Alan P.
Machines not elsewhere specified
Lubricator or oil collector.
D 7700
Patent
active
D03411508
REFERENCES:
patent: D28653 (1898-05-01), Roberts
patent: D28654 (1898-05-01), Roberts
patent: 46255 (1865-02-01), Lochman
patent: D147737 (1947-10-01), Stone
patent: D329655 (1992-09-01), Bonnell
patent: 557876 (1896-04-01), Poston
patent: 4730652 (1988-03-01), Bartholomew
patent: 4823848 (1989-04-01), Sentmore, Sr. et al.
Davis Antoine D.
Douglas Alan P.
Smith Hugh E.
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