Transportation – Rail vehicle – Element or attachment
Patent
1976-02-17
1977-07-26
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D1207
Patent
active
D02451573
REFERENCES:
patent: D199510 (1964-11-01), Burnelli
patent: D218913 (1970-10-01), Fredericks
patent: 3869102 (1975-03-01), Carroll
Interavia, Sept. 1974, p. 815, aircraft at upper left of page.
Douglas Alan P.
Richardson Al
The Boeing Company
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