JPH0130967Y2 - - Google Patents

Info

Publication number
JPH0130967Y2
JPH0130967Y2 JP1981055914U JP5591481U JPH0130967Y2 JP H0130967 Y2 JPH0130967 Y2 JP H0130967Y2 JP 1981055914 U JP1981055914 U JP 1981055914U JP 5591481 U JP5591481 U JP 5591481U JP H0130967 Y2 JPH0130967 Y2 JP H0130967Y2
Authority
JP
Japan
Prior art keywords
depth control
hole
feedback
arm
control arm
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
JP1981055914U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57189304U (pm
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 JP1981055914U priority Critical patent/JPH0130967Y2/ja
Publication of JPS57189304U publication Critical patent/JPS57189304U/ja
Application granted granted Critical
Publication of JPH0130967Y2 publication Critical patent/JPH0130967Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Position Or Direction (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
JP1981055914U 1981-04-17 1981-04-17 Expired JPH0130967Y2 (pm)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981055914U JPH0130967Y2 (pm) 1981-04-17 1981-04-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981055914U JPH0130967Y2 (pm) 1981-04-17 1981-04-17

Publications (2)

Publication Number Publication Date
JPS57189304U JPS57189304U (pm) 1982-12-01
JPH0130967Y2 true JPH0130967Y2 (pm) 1989-09-22

Family

ID=29852440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981055914U Expired JPH0130967Y2 (pm) 1981-04-17 1981-04-17

Country Status (1)

Country Link
JP (1) JPH0130967Y2 (pm)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838122B2 (ja) * 1975-05-29 1983-08-20 ヤンマー農機株式会社 ドウリヨクノウキノサギヨウキシヨウコウソウチ

Also Published As

Publication number Publication date
JPS57189304U (pm) 1982-12-01

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