JPS5422723Y2 - - Google Patents

Info

Publication number
JPS5422723Y2
JPS5422723Y2 JP1974100566U JP10056674U JPS5422723Y2 JP S5422723 Y2 JPS5422723 Y2 JP S5422723Y2 JP 1974100566 U JP1974100566 U JP 1974100566U JP 10056674 U JP10056674 U JP 10056674U JP S5422723 Y2 JPS5422723 Y2 JP S5422723Y2
Authority
JP
Japan
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
JP1974100566U
Other languages
Japanese (ja)
Other versions
JPS5128301U (cg-RX-API-DMAC10.html
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 JP1974100566U priority Critical patent/JPS5422723Y2/ja
Publication of JPS5128301U publication Critical patent/JPS5128301U/ja
Application granted granted Critical
Publication of JPS5422723Y2 publication Critical patent/JPS5422723Y2/ja
Expired legal-status Critical Current

Links

JP1974100566U 1974-08-22 1974-08-22 Expired JPS5422723Y2 (cg-RX-API-DMAC10.html)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1974100566U JPS5422723Y2 (cg-RX-API-DMAC10.html) 1974-08-22 1974-08-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1974100566U JPS5422723Y2 (cg-RX-API-DMAC10.html) 1974-08-22 1974-08-22

Publications (2)

Publication Number Publication Date
JPS5128301U JPS5128301U (cg-RX-API-DMAC10.html) 1976-03-01
JPS5422723Y2 true JPS5422723Y2 (cg-RX-API-DMAC10.html) 1979-08-07

Family

ID=28305927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1974100566U Expired JPS5422723Y2 (cg-RX-API-DMAC10.html) 1974-08-22 1974-08-22

Country Status (1)

Country Link
JP (1) JPS5422723Y2 (cg-RX-API-DMAC10.html)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473617A (en) * 1968-03-20 1969-10-21 Wayland D Elenburg Method and apparatus for drilling and coring
CA926377A (en) * 1970-08-25 1973-05-15 Harold S. Chapman Dual concentric drillpipe

Also Published As

Publication number Publication date
JPS5128301U (cg-RX-API-DMAC10.html) 1976-03-01

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