【発明の名称】内面溝付き管の製造方法

Title:

【発明の名称】内面溝付き管の製造方法

Document Type and Number:

Japanese Patent JP2930249

Kind Code:

B2

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Inventors:

KIMURA ICHIRO
OZAKI KAZUNORI
MYAUCHI ATSUSHI
KONO HARUO

Application Number:

JP29794990A

Publication Date:

August 03, 1999

Filing Date:

November 02, 1990

Export Citation:

Assignee:

MITSUBISHI SHINDO KK

International Classes:

F28F1/40; B21C37/083; B21C37/15; B23K13/00; (IPC1-7): B23K13/00; B21C37/083

Domestic Patent References:

Attorney, Agent or Firm:

Masatake Shiga (2 outside)

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