CA940769A
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1974-01-29
Method and apparatus for correcting the position of a track
CA975950A
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1975-10-14
Apparatus and method for indicating a track position deviation
AU476372B2
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1976-09-16
Apparatus and method for a memory partial-write of error correcting encoded data
JPS5261005A
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1977-05-20
Method and device for correcting railroad track
HU172054B
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1978-05-28
Method and apparatus for filling and leveling track
CA985895A
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1976-03-23
Method and apparatus for lining track in a track curve
CA988368A
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1976-05-04
Apparatus for correcting the position of a track
ZA738392B
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1975-02-26
A method of and an arrangement for aligning and levelling railway tracks
ZA703848B
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1972-04-26
Method of and apparatus for locating a position
ZA734200B
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1974-09-25
Method and an apparatus respectively for reconditioning a container
ZA743307B
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1975-05-28
Method and apparatus for tamping and levelling a track
CA936954A
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1973-11-13
Apparatus for correcting and indicating errors in redundantly recorded information
ZA731734B
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1974-02-27
A method of and an apparatus for correcting position errors in railway tracks
CA974050A
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1975-09-09
Process and apparatus for checking and correcting a railway track
GB1416897A
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1975-12-10
Method and apparatus for reproducing documents
CA980008A
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1975-12-16
Error checking method and apparatus for group of control logic units
AU485224B2
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1975-03-20
A method ofan apparatus for reducing residual errors inthe position of railway tracks
AU5289273A
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1975-03-20
A method ofan apparatus for reducing residual errors inthe position of railway tracks
CA970220A
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1975-07-01
Method and apparatus for inserting a tie under railroad track
CA896977A
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1972-04-04
Apparatus and method for aligning railway track
CA898506A
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1972-04-25
Measuring apparatus for the geometric checking and/or correction of railroad tracks
CA926781A
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1973-05-22
Method and apparatus for measuring speed-error in a pulse train
CA854984A
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1970-11-03
Method and apparatus for preconstructing railroad track sections
AU1788870A
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1972-01-27
Method of and apparatus for correcting the position of railway track
CA924578A
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1973-04-17
Upper turntable apparatus and method for positioning railroad ties