Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B61
RAILWAYS
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B61C
LOCOMOTIVES; MOTOR RAILCARS
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7/00
Other locomotives or motor railcars characterised by the type of motive power plant used; Locomotives or motor railcars with two or more different kinds or types of motive power
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B61C7/04
Locomotives or motor railcars with two or more different kinds or types of engines, e.g. steam and IC engines
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