Title:
中空壁の気密性ダクト構造とその構造に用いる貫通ダクト部材
Document Type and Number:
Japanese Patent JP5276616
Kind Code:
B2
Inventors:
Arai Akio
Application Number:
JP2010050951A
Publication Date:
August 28, 2013
Filing Date:
March 08, 2010
Export Citation:
Assignee:
Arai Akio
International Classes:
F16L5/00; E04F17/04; E04F17/08; F16L5/02
Domestic Patent References:
| JP2009281057A | ||||
| JP2009150610A | ||||
| JP2007321967A | ||||
| JP2000179750A | ||||
| JP4181088A | ||||
| JP6117580A | ||||
| JP7151291A |
Attorney, Agent or Firm:
Toshio Hirayama