Title:
【発明の名称】管棒のとげ付け加工装置及びとげ付き管棒の製造法
Document Type and Number:
Japanese Patent JPH074635
Kind Code:
B2
Inventors:
Yoshihara Seishiro
Application Number:
JP1865789A
Publication Date:
January 25, 1995
Filing Date:
January 27, 1989
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21D17/04; B21C37/20; B21H3/00; (IPC1-7): B21H3/00
Domestic Patent References:
| JP60149894A | ||||
| JP6192711A | ||||
| JP6192712A | ||||
| JP61119310A |
Attorney, Agent or Firm:
Honda Kodaira (3 outside)
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