Title:
【発明の名称】回転工具の異常予知装置及びその方法
Document Type and Number:
Japanese Patent JP3105537
Kind Code:
B2
Inventors:
Shuji Ohira
Ryuji Takada
Ryuji Takada
Application Number:
JP33371190A
Publication Date:
November 06, 2000
Filing Date:
November 30, 1990
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
B23Q17/09; B23B49/00; (IPC1-7): B23Q17/09; B23B49/00
Domestic Patent References:
| JP62166948A | ||||
| JP61100348A |
Attorney, Agent or Firm:
Toshihiko Watanabe