Title:
【考案の名称】穿孔用コアービット
Document Type and Number:
Japanese Patent JP2534400
Kind Code:
Y2
Inventors:
Shibuya Katsuji
Atsushi Mizutani
Atsushi Mizutani
Application Number:
JP7211793U
Publication Date:
April 30, 1997
Filing Date:
December 15, 1993
Export Citation:
Assignee:
Shibuya Manufacturing Co., Ltd.
International Classes:
B23B51/04; B24D7/18; B28D1/14; (IPC1-7): B28D1/14; B23B51/04; B24D7/18
Domestic Patent References:
| JP384109U |
Attorney, Agent or Firm:
Masanori Ishihara (1 person outside)