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GB148476A
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Improvements in roller bearings
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GB148477A
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Improvements in and relating to cages for thrust bearings
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GB134822A
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Device for Testing the Sensitiveness of the Wrist.
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GB135823A
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A Device for Testing a Person's Capacity to Estimate Angles.
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GB139452A
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Improvements in devices for testing physical strength
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GB136800A
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A Device for Testing the Capacity for Estimating Peripheral Speeds and Speeds of Rotation.
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GB134821A
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A Device for Testing a Person's Steadiness of Hand and Accuracy of Aim.
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GB134820A
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A Device for Testing Sense of Touch.
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GB134816A
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A Device for Measuring Sensitiveness to Pressure.
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GB134818A
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A Device for Measuring Touch for Calibre.
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DE359042C
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Machine for grinding rolls on the circumference of a rotating disc
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DE331948C
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Method for connecting the rings of ball bearing cages to one another
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DE339616C
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Method for connecting the two rings of ball bearing cages
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DE332238C
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Grinding machine, especially for ball bearings
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DE337358C
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Cage for roller bearings
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DE324233C
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Pulling device for agricultural equipment with cable
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DE325889C
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Device for testing and practicing workers with regard to their ability for uniformity and regularity of impulses
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DE320832C
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Engine for motor vehicles
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DE322859C
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Device for testing and training people for their usefulness for fine measurements
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DE327568C
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Device for measuring the personal equation of man
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