Title:
ビット係合穴付きねじ及び一群のビット係合穴付きねじとドライバビットとの組み合わせ
Document Type and Number:
Japanese Patent JP4860725
Kind Code:
B2
Inventors:
Yousuke Okamura
Application Number:
JP2009142711A
Publication Date:
January 25, 2012
Filing Date:
June 15, 2009
Export Citation:
Assignee:
Topura Co., Ltd.
International Classes:
F16B23/00
Domestic Patent References:
| JP34013817Y1 | ||||
| JP2006334621A | ||||
| JP3863924B2 |
Foreign References:
| WO2005047716A1 | ||||
| WO2004065067A1 |
Attorney, Agent or Firm:
Hiroyasu Kanai