内面溝付管の製造方法 - THE FURUKAW ELECTRIC CO.,LTD.

Title:

内面溝付管の製造方法

Document Type and Number:

Japanese Patent JP4712160

Kind Code:

B2

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Inventors:

Toshiaki Hashizume
Takashi Yamamoto
Sumitomo Tetsuya

Application Number:

JP2000169270A

Publication Date:

June 29, 2011

Filing Date:

June 06, 2000

Export Citation:

Assignee:

THE FURUKAW ELECTRIC CO.,LTD.

International Classes:

B21C1/22; B21C37/20; B21C3/08; B21D17/00; B21D53/06

Domestic Patent References:

Attorney, Agent or Firm:

Makoto Kono
Kogo Kogo

Previous Patent: JPS4712159

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