塗覆装鞘管内塗覆装埋設管の防食方法及び装置

Title:

塗覆装鞘管内塗覆装埋設管の防食方法及び装置

Document Type and Number:

Japanese Patent JP4037074

Kind Code:

B2

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Inventors:

Fumio Kajiyama
Yuji Hosokawa
Wakamatsu Souki
Fukaya Asayuki

Application Number:

JP2001262273A

Publication Date:

January 23, 2008

Filing Date:

August 30, 2001

Export Citation:

Assignee:

Tokyo Gas Co., Ltd.
Nippon Corrosion Protection Co., Ltd.

International Classes:

F16L58/00; C22C23/02; F16L1/024

Domestic Patent References:

Attorney, Agent or Firm:

Hirokuni Kamo

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