Title:
拡声型通話装置
Document Type and Number:
Japanese Patent JP4262383
Kind Code:
B2
Inventors:
Masao Imai
Application Number:
JP2000044830A
Publication Date:
May 13, 2009
Filing Date:
February 22, 2000
Export Citation:
Assignee:
Aiphone Co., Ltd.
International Classes:
H04M9/00; H04R3/02; H04M1/62; H04M9/08
Domestic Patent References:
| JP63152344U | ||||
| JP2001024803A |
Attorney, Agent or Firm:
Kazuo Moriya