Title:
Ｌ字型角管の製造方法、Ｌ字型角管の製造装置およびＬ字型角管
Document Type and Number:
Japanese Patent JP6634043
Kind Code:
B2
Inventors:
Ryuji Tagami
Application Number:
JP2017027496A
Publication Date:
January 22, 2020
Filing Date:
February 17, 2017
Export Citation:
Assignee:
Nittetsu Nisshin Steel Co., Ltd.
International Classes:
B21D11/08; B21D22/02
Domestic Patent References:
| JP2001047140A | ||||
| JP2004330282A | ||||
| JP2005305523A | ||||
| JP61162323U |
Foreign References:
| GB1481712A |
Attorney, Agent or Firm:
Hayashi Ichiyoshi
Akihiro Kitamura
Akihiro Kitamura