JPS5330285B2 - - Google Patents
Info
- Publication number
- JPS5330285B2 JPS5330285B2 JP9750072A JP9750072A JPS5330285B2 JP S5330285 B2 JPS5330285 B2 JP S5330285B2 JP 9750072 A JP9750072 A JP 9750072A JP 9750072 A JP9750072 A JP 9750072A JP S5330285 B2 JPS5330285 B2 JP S5330285B2
- Authority
- JP
- Japan
- 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
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9750072A JPS5330285B2 (en:Method) | 1972-09-28 | 1972-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9750072A JPS5330285B2 (en:Method) | 1972-09-28 | 1972-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4953706A JPS4953706A (en:Method) | 1974-05-24 |
| JPS5330285B2 true JPS5330285B2 (en:Method) | 1978-08-25 |
Family
ID=14193971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9750072A Expired JPS5330285B2 (en:Method) | 1972-09-28 | 1972-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5330285B2 (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5283004A (en) * | 1975-12-30 | 1977-07-11 | Tamura Electric Works Ltd | Privacy releasing system for key telephone system |
| JPS5283003A (en) * | 1975-12-30 | 1977-07-11 | Tamura Electric Works Ltd | Privacy system for key telephone set |
| JPS5673953A (en) * | 1979-11-22 | 1981-06-19 | Iwatsu Electric Co Ltd | Extension callout system in button telephone device |
| JPS5718857Y2 (en:Method) * | 1980-01-17 | 1982-04-20 | ||
| JPS5745727Y2 (en:Method) * | 1980-02-21 | 1982-10-08 |
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1972
- 1972-09-28 JP JP9750072A patent/JPS5330285B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4953706A (en:Method) | 1974-05-24 |