JPH0391487U - - Google Patents
Info
- Publication number
- JPH0391487U JPH0391487U JP15088089U JP15088089U JPH0391487U JP H0391487 U JPH0391487 U JP H0391487U JP 15088089 U JP15088089 U JP 15088089U JP 15088089 U JP15088089 U JP 15088089U JP H0391487 U JPH0391487 U JP H0391487U
- Authority
- JP
- Japan
- Prior art keywords
- waveform
- signal
- circuit
- whistle
- work equipment
- 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
- 238000000034 method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Selective Calling Equipment (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15088089U JPH0391487U (is) | 1989-12-29 | 1989-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15088089U JPH0391487U (is) | 1989-12-29 | 1989-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0391487U true JPH0391487U (is) | 1991-09-18 |
Family
ID=31697212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15088089U Pending JPH0391487U (is) | 1989-12-29 | 1989-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0391487U (is) |
-
1989
- 1989-12-29 JP JP15088089U patent/JPH0391487U/ja active Pending
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