Title:
継目無し内面溝付伝熱管の製造方法
Document Type and Number:
Japanese Patent JP4100919
Kind Code:
B2
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Inventors:
Nobuaki Hinako
Kiyonori Ozeki
Saeki main tax
Hideki Iwamoto
Kiyonori Ozeki
Saeki main tax
Hideki Iwamoto
Application Number:
JP2002015454A
Publication Date:
June 11, 2008
Filing Date:
January 24, 2002
Export Citation:
Assignee:
Kobelco Material Copper Tube Co., Ltd.
International Classes:
B21C1/22; F28F1/40; B21C3/08; B21C3/16; B21C37/20; B21H7/14; B21H8/00
Domestic Patent References:
| JP3071914A | ||||
| JP2001241877A | ||||
| JP2020612A |
Attorney, Agent or Firm:
Masanori Fujimaki
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