Title:
【発明の名称】熱交換器用チューブの拡管方法及びその拡管装置
Document Type and Number:
Japanese Patent JP2992272
Kind Code:
B1
Inventors:
BABA YOSHIHIRO
Application Number:
JP20955598A
Publication Date:
December 20, 1999
Filing Date:
July 24, 1998
Export Citation:
Assignee:
HIDAKA SEIKI KK
International Classes:
B21D39/06; B21D39/20; B21D53/08; C01F7/42; (IPC1-7): B21D53/08; B21D39/20
Domestic Patent References:
| JP999334A | ||||
| JP9206861A | ||||
| JP9141363A | ||||
| JP4253531A | ||||
| JP51140866A | ||||
| JP54145366A | ||||
| JP513925B1 |
Attorney, Agent or Firm:
Takao Watanuki (1 outside)