Title:
【発明の名称】螺旋状プレートの製造方法及び製造装置
Document Type and Number:
Japanese Patent JPH084843
Kind Code:
B2
Inventors:
Saka Sakae
Hiroshi Tomita
Noboru Nishida
Hiroshi Tomita
Noboru Nishida
Application Number:
JP20244991A
Publication Date:
January 24, 1996
Filing Date:
July 17, 1991
Export Citation:
Assignee:
Chiba Seiki Co., Ltd.
International Classes:
B21D11/07; B21D11/14; (IPC1-7): B21D11/14; B21D11/07
Domestic Patent References:
| JP62197223A |
Attorney, Agent or Firm:
Kazunobu Sera (1 person outside)
Next Patent: ヘミング加工方法