Title:
Tunnel alarm system
Document Type and Number:
Japanese Patent JP6263767
Kind Code:
B2
Inventors:
Owaki Osamu
Application Number:
JP2013219270A
Publication Date:
January 24, 2018
Filing Date:
October 22, 2013
Export Citation:
Assignee:
Iwasaki Electric Co., Ltd.
International Classes:
G08B27/00; A62B3/00; E21F17/18; G08B5/00; G08B17/00
Domestic Patent References:
| JP5205164A | ||||
| JP201134433A | ||||
| JP2007264888A | ||||
| JP2004129280A | ||||
| JP2008134806A | ||||
| JP2011141629A | ||||
| JP10179774A |
Attorney, Agent or Firm:
▲濱▼口 岳久