Back to Record

G-R-S model 9A :
electric switch lock.

APA Citation

General Railway Signal Company. (1949). G-R-S model 9A: electric switch lock. Rochester, N.Y.: General Railway Signal Company.

MLA Citation

General Railway Signal Company. G-R-S Model 9A: Electric Switch Lock. Rochester, N.Y.: General Railway Signal Company, 1949.

Warning: These citations may not always be complete (especially for serials).