Title:
マンホール底版及び組立マンホール
Document Type and Number:
Japanese Patent JP5865637
Kind Code:
B2
Inventors:
Yoichi Saka
Application Number:
JP2011199040A
Publication Date:
February 17, 2016
Filing Date:
September 13, 2011
Export Citation:
Assignee:
Ns work Inc.
International Classes:
E02D29/12; E02D31/12; E03F5/02
Domestic Patent References:
| JP2008291563A | ||||
| JP2008025157A | ||||
| JP2006070569A | ||||
| JP2007332657A | ||||
| JP2003027514A | ||||
| JP2007205017A |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Uzawa Hidehisa
Tsuyoshi Hashimoto
Uzawa Hidehisa
Tsuyoshi Hashimoto