927 resultados para Railway signalling


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Vols. for -Apr. 1916 called new ser. and also old ser., v. -91.

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Cover title.

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Kept up-to-date by periodic replacement or new pages. The latest supplements have title: Manual for railway engineering (fixed properties)

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Adopted by the Committee on Bridges and Structures,... as a Tentative revision of the Standard specifications for highway bridges and incidental structures.

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"Chapter 30; an act respecting steam, electric and street railways; assented to 14th May, 1906"--P. 1.