Title:
管継手、継手構造およびマンホールの配管接続口と推進管との接続方法
Document Type and Number:
Japanese Patent JP5422371
Kind Code:
B2
Inventors:
Ryosuke Inoue
Eiichi Ikeda
Eiichi Ikeda
Application Number:
JP2009292802A
Publication Date:
February 19, 2014
Filing Date:
December 24, 2009
Export Citation:
Assignee:
Ito-Yogyo Co., Ltd.
International Classes:
E02D29/12; E03F3/04; E03F5/02; F16L5/00
Domestic Patent References:
| JP2003227140A | ||||
| JP8004950A | ||||
| JP9242171A | ||||
| JP11191918A | ||||
| JP6322784A |
Attorney, Agent or Firm:
Patent Business Corporation Suncrest International Patent Office
Previous Patent: JPS5422370
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