Title:
【発明の名称】集合住宅用監視通話システム
Document Type and Number:
Japanese Patent JP2740957
Kind Code:
B2
Inventors:
Toshiro Tabushi
Hideo Togawa
Hideo Togawa
Application Number:
JP32704988A
Publication Date:
April 15, 1998
Filing Date:
December 23, 1988
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
G08B19/00; G08B25/04; G08B25/08; H04M9/00; (IPC1-7): G08B25/04; H04M9/00
Domestic Patent References:
| JP63699A | ||||
| JP63158695A | ||||
| JP63238758A |
Attorney, Agent or Firm:
Hiroyuki Nakai