Transportation – Rail vehicle – Element or attachment
Patent
1976-07-19
1978-12-12
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D12 64, D12155, D1206
Patent
active
D02505231
REFERENCES:
patent: D215624 (1969-10-01), Carlson
patent: D217743 (1970-06-01), Butler
patent: 3834340 (1974-09-01), Thorpe
patent: 3913971 (1975-10-01), Green
Anderson William E.
Douglas Alan P.
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