Title:
【発明の名称】Hカット用打抜きポンチおよびその加工方法
Document Type and Number:
Japanese Patent JP2652821
Kind Code:
B2
Inventors:
ARAI CHOJI
KAMIMURA KENICHI
KAMIMURA KENICHI
Application Number:
JP7431991A
Publication Date:
September 10, 1997
Filing Date:
March 15, 1991
Export Citation:
Assignee:
TAMURA DENKI SEISAKUSHO KK
International Classes:
B21D28/02; B21D28/14; B23D15/00; B23D23/00; B23D35/00; B26F1/44; (IPC1-7): B23D15/00; B23D23/00; B23D35/00; B26F1/44
Domestic Patent References:
| JP5138782U | ||||
| JP52168381U |
Attorney, Agent or Firm:
Masaki Yamakawa