Title:
【発明の名称】不正通話防止装置
Document Type and Number:
Japanese Patent JP2932029
Kind Code:
B2
More Like This:
Inventors:
YOSHIMURA KATSUMI
MUROI JUNICHI
MUROI JUNICHI
Application Number:
JP29762893A
Publication Date:
August 09, 1999
Filing Date:
November 04, 1993
Export Citation:
Assignee:
TAMURA DENKI SEISAKUSHO KK
International Classes:
H04M1/66; H04M1/67; H04M17/00; (IPC1-7): H04M17/00
Domestic Patent References:
| JP55162660A | ||||
| JP3107265A | ||||
| JP461956U | ||||
| JP61151457U |
Attorney, Agent or Firm:
Masaki Yamakawa