Title:
【発明の名称】電縫管溶接方法
Document Type and Number:
Japanese Patent JP2910341
Kind Code:
B2
Inventors:
KATANOSAKA TAKASHI
IMAI TETSUO
IMAI TETSUO
Application Number:
JP19241791A
Publication Date:
June 23, 1999
Filing Date:
August 01, 1991
Export Citation:
Assignee:
MEIDENSHA KK
International Classes:
B21C37/08; B23K13/04; B23K13/08; (IPC1-7): B23K13/08
Domestic Patent References:
| JP6156780A |
Attorney, Agent or Firm:
Fujiya Shiga (1 person outside)