熱間穿孔用エキスパンション装置 - Nippon Steel & Sumitomo Metal Corporation

Title:

熱間穿孔用エキスパンション装置

Document Type and Number:

Japanese Patent JP5724860

Kind Code:

B2

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Inventors:

Ishida Kazumasa
Yasuhiro Tanaka
Takeo Noguchi
Ochiai
Toshihisa Ito
Takeshi Kawanishi

Application Number:

JP2011267616A

Publication Date:

May 27, 2015

Filing Date:

December 07, 2011

Export Citation:

Assignee:

Nippon Steel & Sumitomo Metal Corporation

International Classes:

B21C23/08; B21C23/00

Domestic Patent References:

Foreign References:

US2956337

Attorney, Agent or Firm:

Koji Hagiwara
Tetsuo Kanamoto
Miaki Kametani

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