JPH01136589U - - Google Patents
Info
- Publication number
- JPH01136589U JPH01136589U JP2424288U JP2424288U JPH01136589U JP H01136589 U JPH01136589 U JP H01136589U JP 2424288 U JP2424288 U JP 2424288U JP 2424288 U JP2424288 U JP 2424288U JP H01136589 U JPH01136589 U JP H01136589U
- Authority
- JP
- Japan
- Prior art keywords
- drifter
- amplifier
- diode
- variable resistor
- flow rate
- 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
- 238000005553 drilling Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2424288U JPH01136589U (de) | 1988-02-25 | 1988-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2424288U JPH01136589U (de) | 1988-02-25 | 1988-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01136589U true JPH01136589U (de) | 1989-09-19 |
Family
ID=31243929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2424288U Pending JPH01136589U (de) | 1988-02-25 | 1988-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01136589U (de) |
-
1988
- 1988-02-25 JP JP2424288U patent/JPH01136589U/ja active Pending
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