Transportation – Rail vehicle – Element or attachment
Patent
1975-12-29
1977-03-15
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D1207
Patent
active
D02436671
REFERENCES:
patent: D140207 (1945-01-01), Bunyard
patent: D146924 (1947-06-01), McLauchlan
patent: D155281 (1949-09-01), Fontaine
patent: D196946 (1963-11-01), Vogt et al.
Douglas Alan P.
Schmidt Ernest H.
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