US PATENT SUBCLASS 105 / 405
.~.~ Concrete
Current as of:
June, 1999
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105 /
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RAILWAY ROLLING STOCK
396
DF
CAR FRAMING AND STRUCTURE
{5}
404
DF
.~ Freight {7}
405
.~.~ Concrete
DEFINITION
Classification: 105/405
(under subclass 404) Freight cars in which concrete or cement structure is used in whole or in part.