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US3494043A
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Drive mechanism for gear testing apparatus
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US3461456A
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Apparatus for automatically determining the total pitch error of gears or the like
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GB1057858A
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Method and apparatus for testing tooth flanks of involute gears
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US2992491A
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Gear testing apparatus
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US2913831A
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Apparatus for the measurement of gears and the like
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GB894714A
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Apparatus for measuring of divided or graduated circles, particularly gearing parts,tooth thicknesses, width of tooth space in geared parts
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GB847488A
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An improved gear measuring apparatus
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US2906030A
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Gear testing apparatus
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US2938275A
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Method and apparatus for measuring gears and the like
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GB844762A
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Apparatus for measuring gears and the like
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GB819422A
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An improved apparatus for determining the accuracy of a toothed transmission elementor the like
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