Title:
【発明の名称】ボタン電話装置
Document Type and Number:
Japanese Patent JP3004855
Kind Code:
B2
Inventors:
Satoshi Asanuma
Application Number:
JP30384793A
Publication Date:
January 31, 2000
Filing Date:
December 03, 1993
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04Q3/58; (IPC1-7): H04Q3/58
Domestic Patent References:
| JP621396A | ||||
| JP1185094A | ||||
| JP638262A |
Attorney, Agent or Firm:
Masahiro Kurai