| 摘要 |
The base tripod adjustably supports a post structure having a horizontal arm segment at its upper end. A pivot at the arm segment outer end adjustably carries an arm positionable about a horizontal axis of the pivot means. A shorthand machine is mounted on the arm by means of a slide positionable and lockable along the arm. The pivot means includes a lock which serves to retain the machine's supporting arm at a desired inclination. A limit stop on the arm limits slide movement.
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