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JOHN SAXBY Ltd SOC
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JOHN SAXBY Ltd SOC
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Publication of FR722656ApublicationCriticalpatent/FR722656A/en
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
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FR722656D1931-09-021931-09-02
Improvements to heel-capable needle handling devices
ExpiredFR722656A
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