| Original document(6 pages) Authorized document(6 pages) 中文版 |
A rotary hard alloy file with twist handle for matching with electric dental drill is composed of handle and abrasive head fixed to the front end of handle, and features that back part of said handle has the twisted spiral structure. Its advantages are no skid, high abrasive precision, and long service life. |
Application Number
申请号 |
02115418 |
Application Date
申请日 |
2002.01.08 |
| Title 名称 |
Rotary file made from hard alloy with twist shaft mating with use of madical electric dentistry drill |
Publication Number
公开号 |
1430939 |
Publication Date
公开日 |
2003.07.23 |
| Approval Pub. Date |
|
Granted Pub. Date |
2005.02.09 |
| International Classification 分类号 |
A61C3/02,A61C3/06,B23B45/02 |
Applicant(s) Name
申请人 |
Yimei Dentistry Industry Co Ltd, Zhengzhou |
| Address 地址 |
450008 |
| Inventor(s) Name 发明人 |
Zeng Guozheng, Li Huili |
| Attorney & Agent 代理人 |
guo zhongmin |
| More information 更 多 信 息 |
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