Title:
マンホール用耐震継手構造
Document Type and Number:
Japanese Patent JP6399904
Kind Code:
B2
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Inventors:
Kunori Kuninaga
Application Number:
JP2014234073A
Publication Date:
October 03, 2018
Filing Date:
November 19, 2014
Export Citation:
Assignee:
Nishikawa Rubber Industry Co., Ltd.
International Classes:
E03F5/02
Domestic Patent References:
| JP2012136865A | ||||
| JP2003090077A | ||||
| JP3003776U | ||||
| JP2004100144A | ||||
| JP2003027515A | ||||
| JP55113758U |
Foreign References:
| US4429886 |
Attorney, Agent or Firm:
Koichi Sato