既設管破砕装置 - NTT Thiepee Eco Co., Ltd.

Title:

既設管破砕装置

Document Type and Number:

Japanese Patent JP4386300

Kind Code:

B1

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Inventors:

Kazuki Tsuji
Minoru Maeda
Hiroyuki Sakamoto

Application Number:

JP2009107973A

Publication Date:

December 16, 2009

Filing Date:

April 27, 2009

Export Citation:

Assignee:

NTT Thiepee Eco Co., Ltd.
Hiroyuki Sakamoto

International Classes:

E04G23/02; B02C19/00; E04G23/08

Domestic Patent References:

Attorney, Agent or Firm:

Yoshiyuki Ishibashi
Keiichi Nishimura

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