AU437871B2 - Drilling grab - Google Patents

Drilling grab

Info

Publication number
AU437871B2
AU437871B2 AU24782/67A AU2478267A AU437871B2 AU 437871 B2 AU437871 B2 AU 437871B2 AU 24782/67 A AU24782/67 A AU 24782/67A AU 2478267 A AU2478267 A AU 2478267A AU 437871 B2 AU437871 B2 AU 437871B2
Authority
AU
Australia
Prior art keywords
grab
drilling
drilling grab
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
AU24782/67A
Other versions
AU2478267A (en
Inventor
Hochstrasser Robert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elisabeth Hochstrasser And Jurgen Hochstrasser
Original Assignee
Elisabeth Hochstrasser And Jurgen Hochstrasser
Filing date
Publication date
Application filed by Elisabeth Hochstrasser And Jurgen Hochstrasser filed Critical Elisabeth Hochstrasser And Jurgen Hochstrasser
Application granted granted Critical
Publication of AU437871B2 publication Critical patent/AU437871B2/en
Publication of AU2478267A publication Critical patent/AU2478267A/en
Expired legal-status Critical Current

Links

AU24782/67A 1967-07-19 Drilling grab Expired AU437871B2 (en)

Publications (2)

Publication Number Publication Date
AU437871B2 true AU437871B2 (en) 1969-03-13
AU2478267A AU2478267A (en) 1969-03-13

Family

ID=

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