JPH04621Y2 - - Google Patents
Info
- Publication number
- JPH04621Y2 JPH04621Y2 JP1984065187U JP6518784U JPH04621Y2 JP H04621 Y2 JPH04621 Y2 JP H04621Y2 JP 1984065187 U JP1984065187 U JP 1984065187U JP 6518784 U JP6518784 U JP 6518784U JP H04621 Y2 JPH04621 Y2 JP H04621Y2
- Authority
- JP
- Japan
- Prior art keywords
- visitor
- light
- terminal
- light receiving
- receiving element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Closed-Circuit Television Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984065187U JPS60177545U (ja) | 1984-05-02 | 1984-05-02 | インタ−ホン装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984065187U JPS60177545U (ja) | 1984-05-02 | 1984-05-02 | インタ−ホン装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60177545U JPS60177545U (ja) | 1985-11-26 |
JPH04621Y2 true JPH04621Y2 (en]) | 1992-01-09 |
Family
ID=30596959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984065187U Granted JPS60177545U (ja) | 1984-05-02 | 1984-05-02 | インタ−ホン装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60177545U (en]) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2660283B2 (ja) * | 1987-08-26 | 1997-10-08 | 松下電工株式会社 | モニタテレビ付インターホンシステム |
-
1984
- 1984-05-02 JP JP1984065187U patent/JPS60177545U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60177545U (ja) | 1985-11-26 |
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