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Vector illustration ruler scales 20, 40, 60, 80, 100 cm isolated on white background. Measure instrument lines in flat style. Horizontal measuring scale. Markup for rulers. Bar level 1 meter template. Stock-Vektorgrafik | Adobe Stock
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Newton Force Meter Spring Scale, 10N Newton Meter Spring Dynamometer Bar Physics Mechanical Experiment Instrument with Premium Quality: Amazon.com: Industrial & Scientific
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H-B Instrument™ Durac™ Zeitgeber Digital; Channels: 1; w/Memory, battery, mount; w/o clock; Scale: 99 min., 59 sec.; 67W x 70mm H H-B Instrument™ Durac™ Zeitgeber | Fisher Scientific
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