JPH01146655U - - Google Patents
Info
- Publication number
- JPH01146655U JPH01146655U JP4284488U JP4284488U JPH01146655U JP H01146655 U JPH01146655 U JP H01146655U JP 4284488 U JP4284488 U JP 4284488U JP 4284488 U JP4284488 U JP 4284488U JP H01146655 U JPH01146655 U JP H01146655U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- switching
- voltage level
- detection circuit
- 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 9
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284488U JPH01146655U (enrdf_load_stackoverflow) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284488U JPH01146655U (enrdf_load_stackoverflow) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146655U true JPH01146655U (enrdf_load_stackoverflow) | 1989-10-09 |
Family
ID=31269248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4284488U Pending JPH01146655U (enrdf_load_stackoverflow) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146655U (enrdf_load_stackoverflow) |
-
1988
- 1988-03-29 JP JP4284488U patent/JPH01146655U/ja active Pending
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