Title:
マンホール浮上抑制装置
Document Type and Number:
Japanese Patent JP4583351
Kind Code:
B2
Inventors:
Koyuki Yoshida
Tomohisa Yoshida
Tomohisa Yoshida
Application Number:
JP2006249050A
Publication Date:
November 17, 2010
Filing Date:
September 14, 2006
Export Citation:
Assignee:
Chiyoda Corporation
International Classes:
E02D5/80; E02D29/12
Domestic Patent References:
| JP62176233U | ||||
| JP2005248496A | ||||
| JP8326053A | ||||
| JP1127720A | ||||
| JP2001214440A | ||||
| JP10331156A | ||||
| JP2003020663A |
Attorney, Agent or Firm:
Shigeru Fujiyoshi