JPH0477645U - - Google Patents

Info

Publication number
JPH0477645U
JPH0477645U JP11822990U JP11822990U JPH0477645U JP H0477645 U JPH0477645 U JP H0477645U JP 11822990 U JP11822990 U JP 11822990U JP 11822990 U JP11822990 U JP 11822990U JP H0477645 U JPH0477645 U JP H0477645U
Authority
JP
Japan
Prior art keywords
pipe
sand
water
drainage
pump
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
Application number
JP11822990U
Other languages
English (en)
Japanese (ja)
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 JP11822990U priority Critical patent/JPH0477645U/ja
Publication of JPH0477645U publication Critical patent/JPH0477645U/ja
Pending legal-status Critical Current

Links

JP11822990U 1990-11-09 1990-11-09 Pending JPH0477645U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11822990U JPH0477645U (enrdf_load_stackoverflow) 1990-11-09 1990-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11822990U JPH0477645U (enrdf_load_stackoverflow) 1990-11-09 1990-11-09

Publications (1)

Publication Number Publication Date
JPH0477645U true JPH0477645U (enrdf_load_stackoverflow) 1992-07-07

Family

ID=31866134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11822990U Pending JPH0477645U (enrdf_load_stackoverflow) 1990-11-09 1990-11-09

Country Status (1)

Country Link
JP (1) JPH0477645U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535539A (en) * 1978-09-06 1980-03-12 Hitachi Ltd Variable gain control unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535539A (en) * 1978-09-06 1980-03-12 Hitachi Ltd Variable gain control unit

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