JPS5026304A - - Google Patents

Info

Publication number
JPS5026304A
JPS5026304A JP7725573A JP7725573A JPS5026304A JP S5026304 A JPS5026304 A JP S5026304A JP 7725573 A JP7725573 A JP 7725573A JP 7725573 A JP7725573 A JP 7725573A JP S5026304 A JPS5026304 A JP S5026304A
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.)
Pending
Application number
JP7725573A
Other languages
Japanese (ja)
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 JP7725573A priority Critical patent/JPS5026304A/ja
Publication of JPS5026304A publication Critical patent/JPS5026304A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP7725573A 1973-07-09 1973-07-09 Pending JPS5026304A (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7725573A JPS5026304A (cs) 1973-07-09 1973-07-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7725573A JPS5026304A (cs) 1973-07-09 1973-07-09

Publications (1)

Publication Number Publication Date
JPS5026304A true JPS5026304A (cs) 1975-03-19

Family

ID=13628735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7725573A Pending JPS5026304A (cs) 1973-07-09 1973-07-09

Country Status (1)

Country Link
JP (1) JPS5026304A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512948U (cs) * 1974-06-21 1976-01-10

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149686A (en) * 1961-11-07 1964-09-22 Walter A Hart Rock drill bit
JPS4840202A (cs) * 1971-09-27 1973-06-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149686A (en) * 1961-11-07 1964-09-22 Walter A Hart Rock drill bit
JPS4840202A (cs) * 1971-09-27 1973-06-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512948U (cs) * 1974-06-21 1976-01-10

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