The Westinghouse electric semaphore signal.
Publisher: Westinghouse Brake Company Ltd.
Published: 1904
Place of publication: London
Language: eng
Table of contents: value: Contents: Westinghouse Electric semaphore signal - Westinghouse electro-pneumatic signalling Signalling pamphlet No.6 - Westinghouse Electro-pneumatic signalling pamphlet No. 8.