Title:
【考案の名称】換気口閉鎖装置
Document Type and Number:
Japanese Patent JP3076362
Kind Code:
U
Inventors:
Eiichiro Yamashita
Application Number:
JP2000006722U
Publication Date:
March 30, 2001
Filing Date:
September 18, 2000
Export Citation:
Assignee:
Nippon Sumical Co., Ltd.
International Classes:
(IPC1-7): E04B1/70; E02D27/01
Attorney, Agent or Firm:
Nobuyuki Fujii (2 others)