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GB419344A
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Improvements in and relating to ring doubling frames for artificial silk
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GB417907A
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Automatic lubricating device for the ring and the traveller in ring spinning or doubling frames or the like
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DE645464C
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Device for the automatic lubrication of the rings and runners of ring spinning and ring twisting machines
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US2043520A
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Automatic lubricating device for the ring and the traveler in ring spinning or doubling frames or the like
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GB390724A
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Improvements in and relating to ring doubling frames for artificial silk
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US1936370A
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Artificial silk ring doubler
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GB370646A
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An improved variable ratio transmission device for use in continuous ring spinning or doubling machines
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GB369021A
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An improved transmission device for the drawing mechanism of spinning machines
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