Title:
放物線器具
Document Type and Number:
Japanese Patent JP7353970
Kind Code:
B2
Abstract:
An instrument comprising a shank and a working portion, the working portion having a tip and a plurality of flutes being defined by at least two lands having a land margin; wherein the working portion has a parabolic cross-section defining opposing convexed surfaces extending between at least two opposing land margins.
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Inventors:
Le Blanc, Romantic
Balk, eric
Balk, eric
Application Number:
JP2019505014A
Publication Date:
October 02, 2023
Filing Date:
March 29, 2018
Export Citation:
Assignee:
DENTSPLY Sirona Incorporated
International Classes:
A61C3/02; A61B17/16; A61C8/00; B23B51/00
Domestic Patent References:
| JP2013544594A | ||||
| JP9501109A | ||||
| JP2015534898A | ||||
| JP5220979B2 | ||||
| JP63004211U |
Foreign References:
| CN201613382U |
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Akiyo Iwahori
Kamoto Takahashi
Nao Oda
Akiyo Iwahori
Kamoto Takahashi