JPH02100370U - - Google Patents
Info
- Publication number
- JPH02100370U JPH02100370U JP904989U JP904989U JPH02100370U JP H02100370 U JPH02100370 U JP H02100370U JP 904989 U JP904989 U JP 904989U JP 904989 U JP904989 U JP 904989U JP H02100370 U JPH02100370 U JP H02100370U
- Authority
- JP
- Japan
- Prior art keywords
- voltage level
- control device
- switching
- contact
- lines
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP904989U JPH02100370U (en, 2012) | 1989-01-27 | 1989-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP904989U JPH02100370U (en, 2012) | 1989-01-27 | 1989-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02100370U true JPH02100370U (en, 2012) | 1990-08-09 |
Family
ID=31215460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP904989U Pending JPH02100370U (en, 2012) | 1989-01-27 | 1989-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02100370U (en, 2012) |
-
1989
- 1989-01-27 JP JP904989U patent/JPH02100370U/ja active Pending
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