Title:
【発明の名称】通話料金管理方式
Document Type and Number:
Japanese Patent JP2873468
Kind Code:
B2
Inventors:
ITO HIROYUKI
Application Number:
JP25323089A
Publication Date:
March 24, 1999
Filing Date:
September 28, 1989
Export Citation:
Assignee:
TAIKO DENKI SEISAKUSHO KK
International Classes:
H04M15/00; H04M17/02; (IPC1-7): H04M15/00
Domestic Patent References:
| JP1218162A | ||||
| JP6480153A | ||||
| JP60103864A |
Attorney, Agent or Firm:
Masami Sato