Car Builders' Cyclopedia of American Practice, 第 3 巻
Definitions and typical illustrations of railroads and industrial cars, their parts and equipment; cars built in America for export to foreign countries; descriptions and illustrations of shops and equipment employed in the construction and repair of cars.
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Side reinforced bulk material transport container - US Patent 6877440
"Freight cars: Gondola; Drop End", 1953, Car Builders' Cyclopedia of American Practice, 19th edition, Association of American Railroads--Mechanical Division ...
www.patentstorm.us/ patents/ 6877440-claims.html