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416050
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Information
Patent Grant
416050
References
Source
Patent Number
416,050
Date Filed
Not available
Date Issued
Tuesday, November 26, 1889
135 years ago
CPC
A63G7/00 - Up-and-down hill tracks Switchbacks
E01B3/12 - Longitudinal sleepers Longitudinal sleepers integral or combined with tie-rods Combined longitudinal and transverse sleepers
US Classifications
238 - Railways: surface track
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