Title:
【発明の名称】岩への棒状部材の固定装置、この装置を用いたロックボルトおよび岩石の吊上げ装置
Document Type and Number:
Japanese Patent JP3381159
Kind Code:
B2
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Inventors:
Akio Kamijima
Application Number:
JP2000130644A
Publication Date:
February 24, 2003
Filing Date:
April 28, 2000
Export Citation:
Assignee:
Kamijima Gumi Co., Ltd.
International Classes:
E21D20/00; B66C1/66; E02D5/80; (IPC1-7): E21D20/00; B66C1/66
Domestic Patent References:
| JP32490A | ||||
| JP595220Y2 |
Other References:
【文献】特許3069097(JP,B1)
Attorney, Agent or Firm:
Shoichi Zakuwa (1 person outside)