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Title:
【発明の名称】内面溝付き管の製造方法および製造装置
Document Type and Number:
Japanese Patent JP2618084
Kind Code:
B2
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Inventors:
Haruo Kono
Kimura Ichiro
Kazunori Ozaki
Atsushi Miyauchi
Application Number:
JP27846990A
Publication Date:
June 11, 1997
Filing Date:
October 17, 1990
Export Citation:
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Assignee:
Mitsubishi Shindoh Co., Ltd.
International Classes:
F28F1/40; B21B1/08; B21B1/22; B21B27/02; B21C37/083; B21C37/15; B21H8/00; B21B23/00; (IPC1-7): B21C37/15; B21C37/083; F28F1/40
Domestic Patent References:
JP2112822A
Attorney, Agent or Firm:
Masatake Shiga (2 outside)



 
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