G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
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Physics & Mathematics
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Engineering & Computer Science
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Theoretical Computer Science
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Mathematical Physics
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Computer Hardware Design
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General Physics & Mathematics
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Length-Measuring Instruments Using Mechanical Means
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