Measuring apparatu convenient to stable observation

The utility model relates to a measuring instrument field, and disclose a measuring apparatu convenient to stable observation, including the caliber, the front and the equal fixed mounting in the backof caliber have the handrail, the bottom fixedly connected with montant of caliber, the fixed cover...

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Bibliographische Detailangaben
1. Verfasser: REN BINGXUN
Format: Patent
Sprache:chi ; eng
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