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3872929
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Information
Patent Grant
3872929
References
Source
Patent Number
3,872,929
Date Filed
Not available
Date Issued
Tuesday, March 25, 1975
49 years ago
CPC
E01B27/18 - by introducing additional fresh material under the sleepers
E01B27/02 - Placing the ballast Making ballastway Redistributing ballasting material Machines or devices therefor Levelling means
E01B27/022 - by devices moving on the track with or without spreading or levelling
E01B27/10 - without taking-up track
E01B2203/012 - present
E01B2203/024 - Inclined chain
E01B2203/045 - the ballast having been taken up
E01B2203/047 - Adding material
E01B2203/065 - Re-use of ballast
E01B2203/08 - Levelling ballast or ground beneath
E01B2203/141 - on the track to be treated
US Classifications
171 - Unearthing plants or buried objects
104 - Railways
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