Title:
【発明の名称】ボタン電話装置
Document Type and Number:
Japanese Patent JP3023204
Kind Code:
B2
More Like This:
Inventors:
Akemi Watanabe
Application Number:
JP12965091A
Publication Date:
March 21, 2000
Filing Date:
May 31, 1991
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04M3/42; H04M3/54; H04Q3/58; (IPC1-7): H04Q3/58; H04M3/42; H04M3/54
Domestic Patent References:
| JP2181563A | ||||
| JP61199398A |
Attorney, Agent or Firm:
Kazuo Sato (3 others)