JPH01172362U - - Google Patents

Info

Publication number
JPH01172362U
JPH01172362U JP6821388U JP6821388U JPH01172362U JP H01172362 U JPH01172362 U JP H01172362U JP 6821388 U JP6821388 U JP 6821388U JP 6821388 U JP6821388 U JP 6821388U JP H01172362 U JPH01172362 U JP H01172362U
Authority
JP
Japan
Prior art keywords
oxygen
pipe
vortex
supply device
valve
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.)
Granted
Application number
JP6821388U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0350683Y2 (zh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6821388U priority Critical patent/JPH0350683Y2/ja
Publication of JPH01172362U publication Critical patent/JPH01172362U/ja
Application granted granted Critical
Publication of JPH0350683Y2 publication Critical patent/JPH0350683Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Farming Of Fish And Shellfish (AREA)
JP6821388U 1988-05-23 1988-05-23 Expired JPH0350683Y2 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6821388U JPH0350683Y2 (zh) 1988-05-23 1988-05-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6821388U JPH0350683Y2 (zh) 1988-05-23 1988-05-23

Publications (2)

Publication Number Publication Date
JPH01172362U true JPH01172362U (zh) 1989-12-06
JPH0350683Y2 JPH0350683Y2 (zh) 1991-10-29

Family

ID=31293535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6821388U Expired JPH0350683Y2 (zh) 1988-05-23 1988-05-23

Country Status (1)

Country Link
JP (1) JPH0350683Y2 (zh)

Also Published As

Publication number Publication date
JPH0350683Y2 (zh) 1991-10-29

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