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 (US20050075337A1-20050407-C00081.png
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 (US20050075337A1-20050407-C00081.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12214687U JPH0317926Y2 (US20050075337A1-20050407-C00081.png) 1987-08-11 1987-08-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12214687U JPH0317926Y2 (US20050075337A1-20050407-C00081.png) 1987-08-11 1987-08-11

Publications (2)

Publication Number Publication Date
JPS6428914U true JPS6428914U (US20050075337A1-20050407-C00081.png) 1989-02-21
JPH0317926Y2 JPH0317926Y2 (US20050075337A1-20050407-C00081.png) 1991-04-16

Family

ID=31369798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12214687U Expired JPH0317926Y2 (US20050075337A1-20050407-C00081.png) 1987-08-11 1987-08-11

Country Status (1)

Country Link
JP (1) JPH0317926Y2 (US20050075337A1-20050407-C00081.png)

Also Published As

Publication number Publication date
JPH0317926Y2 (US20050075337A1-20050407-C00081.png) 1991-04-16

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