Title:
【発明の名称】天井点検口の構造
Document Type and Number:
Japanese Patent JP3377422
Kind Code:
B2
Inventors:
Ryoichi Matsushima
Application Number:
JP32354297A
Publication Date:
February 17, 2003
Filing Date:
November 25, 1997
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
E04F19/08; (IPC1-7): E04F19/08
Domestic Patent References:
| JP587138U |
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)