Title:
防火扉の開閉装置
Document Type and Number:
Japanese Patent JP3973971
Kind Code:
B2
Inventors:
Kenji Sato
Application Number:
JP2002153298A
Publication Date:
September 12, 2007
Filing Date:
May 28, 2002
Export Citation:
Assignee:
Kayaba System Machinery Co., Ltd.
International Classes:
A62C2/06; B63B43/24; E05B53/00; E05B65/10; F16B1/02
Domestic Patent References:
| JP62036751U | ||||
| JP2000087612A | ||||
| JP64066383A |
Attorney, Agent or Firm:
Masaki Goto