Top IPC subclasses
1
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G01H
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1
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measurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves
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2
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B25B
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1
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tools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holdin
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3
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G01P
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1
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measuring linear or angular speed, acceleration, deceleration, or shockindicating presence, absence,
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