Transportation – Rail vehicle – Element or attachment
Patent
1975-10-20
1977-01-04
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D1206
Patent
active
D02429110
REFERENCES:
patent: D87263 (1932-06-01), Johnson
patent: D160045 (1950-09-01), Wiggins, Jr.
Douglas Alan P.
Matheny Fred C.
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