Transportation – Rail vehicle – Element or attachment
Patent
1977-01-24
1979-04-03
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D12 63, D21130, D1206
Patent
active
D02514893
REFERENCES:
patent: D206974 (1967-02-01), Sherburne
patent: 1886650 (1932-11-01), Davies et al.
patent: 3422778 (1969-01-01), Halfon
Douglas Alan P.
Malin Eugene F.
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