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82 views
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74 views
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78 views
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81 views
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From Bul. 154 C.B.& Q.75 views
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Diagrams Retarders "Get switches closer together" and "You do not need additional track spacce for detector circuits.77 views
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Diagram- Save yard space by utilizing curved track for retarders78 views
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From Ad. #K2739 "The Evalution of C.T.C. and "Union" Track Code Control91 views
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How a Mechanically Rectified Decoding Circuit works. Bulletin 15777 views
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Motor Car Indicator81 views
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Motor Car Indicator76 views
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Roller Bearing on long switch points74 views
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Roller Bearing on long switch points71 views
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Roller Bearing on mechanically interlocked switch points73 views
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Roller Bearing on mechanically interlocked switch point72 views
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Power operated switch equipped with Roller Bearing72 views
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Hand operated switch equipped with Roller Bearing72 views
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Fig. 3C - Double Rail A.C. Track Circuit75 views
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Fig. 7 - Interlocked Signal Layout89 views
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Fig. 4 - Automatic Block Signals79 views
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Line Dwg. on Two-Three-Four Indication Cab Signal Equip. Boxes77 views
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C.T.C. Map70 views
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Line drawing of 95-A-378784 views
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Line drawing of 95-A-346174 views
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"Union" Roller Bearing on hand-operated switch71 views
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"Union" Roller Bearings on mechanically interlocked switch71 views
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"Union" Roller Bearing on power operated switch73 views
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"Union" Roller Bearings on long-railed switch points70 views
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Copy negative of paste up of colored enlargement of Pocatello Yard80 views
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Line drawing of Highball Signal75 views
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Line drawings Track Circuits and Control Machine84 views
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Signal Project Dollar83 views
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