FIELD: control devices
SUBSTANCE: driving quality control device contains a hollow transparent spherical body (1) with a neck (2) and a stand (3) at the bottom, inside which a fine powder (14) is contained, and in the center there is a holder (5) with a suspension (6) having weight at the end (12) with end piece (13).
EFFECT: improving reliability.
13 cl, 1 dwg
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Authors
Dates
2022-01-17—Published
2021-10-20—Filed