JPH01160749U - - Google Patents
Info
- Publication number
- JPH01160749U JPH01160749U JP5612388U JP5612388U JPH01160749U JP H01160749 U JPH01160749 U JP H01160749U JP 5612388 U JP5612388 U JP 5612388U JP 5612388 U JP5612388 U JP 5612388U JP H01160749 U JPH01160749 U JP H01160749U
- Authority
- JP
- Japan
- Prior art keywords
- transmitter
- receiver
- opened
- closed
- detection means
- 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 2
Landscapes
- Telephone Set Structure (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5612388U JPH01160749U (fi) | 1988-04-26 | 1988-04-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5612388U JPH01160749U (fi) | 1988-04-26 | 1988-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01160749U true JPH01160749U (fi) | 1989-11-08 |
Family
ID=31282006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5612388U Pending JPH01160749U (fi) | 1988-04-26 | 1988-04-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01160749U (fi) |
-
1988
- 1988-04-26 JP JP5612388U patent/JPH01160749U/ja active Pending