Title:
【発明の名称】集合住宅用ロビーインターホン
Document Type and Number:
Japanese Patent JP3359939
Kind Code:
B2
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Inventors:
Kenji Hirota
Application Number:
JP22703192A
Publication Date:
December 24, 2002
Filing Date:
August 26, 1992
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
G08B3/10; H04B10/03; H04M9/00; H04M9/08; (IPC1-7): H04M9/08; H04M9/00
Domestic Patent References:
| JP6229327A | ||||
| JP61184029A |
Attorney, Agent or Firm:
Hiroyuki Nakai