Title:
穿孔ビット
Document Type and Number:
Japanese Patent JP5793342
Kind Code:
B2
Inventors:
Kazunori Maeda
Takeda Ikeda
Takeda Ikeda
Application Number:
JP2011107258A
Publication Date:
October 14, 2015
Filing Date:
May 12, 2011
Export Citation:
Assignee:
Okabe Co., Ltd.
Nittetsu Sumikin Building Materials Co., Ltd.
Nittetsu Sumikin Building Materials Co., Ltd.
International Classes:
E21B10/58
Domestic Patent References:
| JP2007277957A | ||||
| JP2116588U | ||||
| JP59098982U |
Foreign References:
| GB530113A |
Attorney, Agent or Firm:
Go Eto
Shigeo Nakajima
Shigeo Nakajima