JPS6428914U - - Google Patents

Info

Publication number
JPS6428914U
JPS6428914U JP12214687U JP12214687U JPS6428914U JP S6428914 U JPS6428914 U JP S6428914U JP 12214687 U JP12214687 U JP 12214687U JP 12214687 U JP12214687 U JP 12214687U JP S6428914 U JPS6428914 U JP S6428914U
Authority
JP
Japan
Prior art keywords
filter sand
cylindrical
filter
pipe
sand layer
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
JP12214687U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0317926Y2 (nl
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 JP12214687U priority Critical patent/JPH0317926Y2/ja
Publication of JPS6428914U publication Critical patent/JPS6428914U/ja
Application granted granted Critical
Publication of JPH0317926Y2 publication Critical patent/JPH0317926Y2/ja
Expired legal-status Critical Current

Links

JP12214687U 1987-08-11 1987-08-11 Expired JPH0317926Y2 (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12214687U JPH0317926Y2 (nl) 1987-08-11 1987-08-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12214687U JPH0317926Y2 (nl) 1987-08-11 1987-08-11

Publications (2)

Publication Number Publication Date
JPS6428914U true JPS6428914U (nl) 1989-02-21
JPH0317926Y2 JPH0317926Y2 (nl) 1991-04-16

Family

ID=31369798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12214687U Expired JPH0317926Y2 (nl) 1987-08-11 1987-08-11

Country Status (1)

Country Link
JP (1) JPH0317926Y2 (nl)

Also Published As

Publication number Publication date
JPH0317926Y2 (nl) 1991-04-16

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