井戸及び井戸内の地下水の酸化を防止する方法、並びに非常用井戸の構築方法及びその方法で構築された非常用井戸

Title:

井戸及び井戸内の地下水の酸化を防止する方法、並びに非常用井戸の構築方法及びその方法で構築された非常用井戸

Document Type and Number:

Japanese Patent JP5338064

Kind Code:

B2

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Inventors:

Yoshihiko Morio
Takayuki Ueno
Kiyohiro

Application Number:

JP2007293546A

Publication Date:

November 13, 2013

Filing Date:

November 12, 2007

Export Citation:

Assignee:

Obayashi Corporation

International Classes:

E03B3/15; E02D3/10; E02D5/20; E02D19/10; E21B43/00; E21B47/00

Domestic Patent References:

Attorney, Agent or Firm:

Isshiki International Patent Service Corporation

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