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GB458351A
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Process and apparatus for making inner and outer rings for ball or roller bearings
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GB382236A
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Process and device for the manufacture of shaped pieces from annular or tubular blanks
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GB375682A
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Improvements in or relating to the production of ball races and the like
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GB383725A
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Improvements in or relating to ball bearings
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GB307688A
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A method of and means for producing perforated or hollow articles
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GB218977A
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Improvements relating to the cold rolling of the rims of circular discs
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