Transportation – Rail vehicle – Element or attachment
Patent
1977-01-24
1980-03-25
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D12 70, D1206
Patent
active
D02545381
REFERENCES:
patent: D107724 (1937-12-01), Luders
patent: D235753 (1975-07-01), Bremer
patent: 2887978 (1959-05-01), Tritt
patent: 3948197 (1976-04-01), Henry
Douglas Alan P.
Flehr Paul D.
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