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| Number | Title | Issue Date |
| 7013576 | Measuring device using multi-start threaded spindle Provided is a measuring device 1 for measuring the size of an object comprising a body 2, and a spindle 3 which is screwed into the body 2 and axially advances and retracts by screwing with respect to the body 2, the measurement be... | 03/21/2006 |
| 6946062 | Electropolish/grinding means for an inner surface of a long tube The present invention is an electropolishing/grinding device for an inner surface of a long tube, including at least one long tube, one electrode, at least two partitions, one fixed magnet mechanism, one driving apparatus and an axial driven mechanism. The fixed mag... | 09/20/2005 |
| 4561185 | Measuring instrument The present invention relates to a measuring instrument, and this measuring instrument comprises a main frame for axially movably supporting a spindle, a first tubular member having loosely inserted thereinto an engageable member projected from the spindl... | 12/31/1985 |
| 4553330 | Micrometer A micrometer wherein two or more spindles are disposed on one and the same axis, a spindle in contact with a workpiece to be measured is made unrotatable and a thimble is reduced in diameter. This micrometer comprising a main body (1, 101), a first spindle (15... | 11/19/1985 |
