General Railway Signal Company
URI(s)
Variants
Additional Information
Exact Matching Concepts from Other Schemes
Closely Matching Concepts from Other Schemes
Sources
found: G-R-S automatic train control, 1928.
found: The GRS way to electronic railroading, 1963.
found: nuc89-88226: Rail transit rediscovered, c1983(hdg. on IaU rept.: General Railway Signal Company; usage: General Railway Signal Company)
found: LC data base, 5-25-90(hdg.: General Railway Signal Company)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
1990-05-25: new
2014-01-29: revised
Alternate Formats