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|All Authors / Contributors:||General Railway Signal Company.|
|Notes:||Includes list of offices.
Includes appendices listing electric interlocking installations designed by General Railway Signal Company.
Includes picture of Rochester manufacturing works.
|Description:||25 pages : illustrations ; 23 cm.|
|Series Title:||Bulletin (General Railway Signal Company), 167.|
|Responsibility:||General Railway Signal Company, Rochester, N.Y.|