JPH057354Y2 - - Google Patents

Info

Publication number
JPH057354Y2
JPH057354Y2 JP1987194151U JP19415187U JPH057354Y2 JP H057354 Y2 JPH057354 Y2 JP H057354Y2 JP 1987194151 U JP1987194151 U JP 1987194151U JP 19415187 U JP19415187 U JP 19415187U JP H057354 Y2 JPH057354 Y2 JP H057354Y2
Authority
JP
Japan
Prior art keywords
kelly
lever
keel
cushioning material
swivel joint
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 - Lifetime
Application number
JP1987194151U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0198294U (enrdf_load_html_response
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 JP1987194151U priority Critical patent/JPH057354Y2/ja
Publication of JPH0198294U publication Critical patent/JPH0198294U/ja
Application granted granted Critical
Publication of JPH057354Y2 publication Critical patent/JPH057354Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1987194151U 1987-12-21 1987-12-21 Expired - Lifetime JPH057354Y2 (enrdf_load_html_response)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987194151U JPH057354Y2 (enrdf_load_html_response) 1987-12-21 1987-12-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987194151U JPH057354Y2 (enrdf_load_html_response) 1987-12-21 1987-12-21

Publications (2)

Publication Number Publication Date
JPH0198294U JPH0198294U (enrdf_load_html_response) 1989-06-30
JPH057354Y2 true JPH057354Y2 (enrdf_load_html_response) 1993-02-24

Family

ID=31484896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987194151U Expired - Lifetime JPH057354Y2 (enrdf_load_html_response) 1987-12-21 1987-12-21

Country Status (1)

Country Link
JP (1) JPH057354Y2 (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735909Y2 (ja) * 1990-12-19 1995-08-16 日本車輌製造株式会社 アースドリルのケリーバ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5247286Y2 (enrdf_load_html_response) * 1975-06-14 1977-10-27
JPH0426554Y2 (enrdf_load_html_response) * 1986-02-12 1992-06-25
JPH0434236Y2 (enrdf_load_html_response) * 1986-03-20 1992-08-14

Also Published As

Publication number Publication date
JPH0198294U (enrdf_load_html_response) 1989-06-30

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