JPS6145232Y2 - - Google Patents

Info

Publication number
JPS6145232Y2
JPS6145232Y2 JP4200877U JP4200877U JPS6145232Y2 JP S6145232 Y2 JPS6145232 Y2 JP S6145232Y2 JP 4200877 U JP4200877 U JP 4200877U JP 4200877 U JP4200877 U JP 4200877U JP S6145232 Y2 JPS6145232 Y2 JP S6145232Y2
Authority
JP
Japan
Prior art keywords
vertical groove
attached
underdrain
groove
groove forming
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.)
Expired
Application number
JP4200877U
Other languages
English (en)
Japanese (ja)
Other versions
JPS53137537U (enEXAMPLES
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 JP4200877U priority Critical patent/JPS6145232Y2/ja
Publication of JPS53137537U publication Critical patent/JPS53137537U/ja
Application granted granted Critical
Publication of JPS6145232Y2 publication Critical patent/JPS6145232Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Soil Working Implements (AREA)
JP4200877U 1977-04-06 1977-04-06 Expired JPS6145232Y2 (enEXAMPLES)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4200877U JPS6145232Y2 (enEXAMPLES) 1977-04-06 1977-04-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4200877U JPS6145232Y2 (enEXAMPLES) 1977-04-06 1977-04-06

Publications (2)

Publication Number Publication Date
JPS53137537U JPS53137537U (enEXAMPLES) 1978-10-31
JPS6145232Y2 true JPS6145232Y2 (enEXAMPLES) 1986-12-19

Family

ID=28913680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4200877U Expired JPS6145232Y2 (enEXAMPLES) 1977-04-06 1977-04-06

Country Status (1)

Country Link
JP (1) JPS6145232Y2 (enEXAMPLES)

Also Published As

Publication number Publication date
JPS53137537U (enEXAMPLES) 1978-10-31

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