Title:
貫通孔形成器具、外皮材保持部材及びコンクリート構造物の貫通孔形成方法
Document Type and Number:
Japanese Patent JP4270406
Kind Code:
B1
Inventors:
Shinichi Oko
Application Number:
JP2008218911A
Publication Date:
June 03, 2009
Filing Date:
August 28, 2008
Export Citation:
Assignee:
Shinichi Oko
International Classes:
E04G15/06
Domestic Patent References:
| JP2003129659A | ||||
| JP59126049U | ||||
| JP3017352A | ||||
| JP2000064607A |
Attorney, Agent or Firm:
Naomi Katsura River