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GB423421A
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Improvements in or relating to keys and key-joints
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GB352827A
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Oscillation damper for shafts
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GB315216A
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Method of finishing machine or structural parts and the like
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GB332299A
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Device for testing constructional material by means of oscillations of flexure of test-pieces
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GB287500A
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A machine for the determination of internal friction or damping of materials under torsional oscillations
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GB211898A
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Improvements in and relating to the testing of engineering materials under torsion
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