Title:
【発明の名称】コンクリート建築物における配管用孔の形成方法と配管用孔形成用具
Document Type and Number:
Japanese Patent JP3335336
Kind Code:
B2
Inventors:
Hirotoshi Okazaki
Application Number:
JP2000037408A
Publication Date:
October 15, 2002
Filing Date:
February 16, 2000
Export Citation:
Assignee:
Hirotoshi Okazaki
International Classes:
E04G15/06; (IPC1-7): E04G15/06
Domestic Patent References:
| JP11217937A | ||||
| JP10245986A | ||||
| JP198859U | ||||
| JP279755U | ||||
| JP507062Y1 |
Attorney, Agent or Firm:
Yasunobu Yamauchi