JPS50157202A - - Google Patents

Info

Publication number
JPS50157202A
JPS50157202A JP6506874A JP6506874A JPS50157202A JP S50157202 A JPS50157202 A JP S50157202A JP 6506874 A JP6506874 A JP 6506874A JP 6506874 A JP6506874 A JP 6506874A JP S50157202 A JPS50157202 A JP S50157202A
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.)
Granted
Application number
JP6506874A
Other languages
Japanese (ja)
Other versions
JPS5410325B2 (enrdf_load_stackoverflow
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 JP6506874A priority Critical patent/JPS5410325B2/ja
Publication of JPS50157202A publication Critical patent/JPS50157202A/ja
Publication of JPS5410325B2 publication Critical patent/JPS5410325B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP6506874A 1974-06-10 1974-06-10 Expired JPS5410325B2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6506874A JPS5410325B2 (enrdf_load_stackoverflow) 1974-06-10 1974-06-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6506874A JPS5410325B2 (enrdf_load_stackoverflow) 1974-06-10 1974-06-10

Publications (2)

Publication Number Publication Date
JPS50157202A true JPS50157202A (enrdf_load_stackoverflow) 1975-12-19
JPS5410325B2 JPS5410325B2 (enrdf_load_stackoverflow) 1979-05-04

Family

ID=13276249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6506874A Expired JPS5410325B2 (enrdf_load_stackoverflow) 1974-06-10 1974-06-10

Country Status (1)

Country Link
JP (1) JPS5410325B2 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883790A (ja) * 1981-11-12 1983-05-19 住友電気工業株式会社 ドリルビット

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135341A (en) * 1960-10-04 1964-06-02 Christensen Diamond Prod Co Diamond drill bits
FR2029963A5 (enrdf_load_stackoverflow) * 1969-03-19 1970-10-23 Petroles Cie Francaise

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135341A (en) * 1960-10-04 1964-06-02 Christensen Diamond Prod Co Diamond drill bits
FR2029963A5 (enrdf_load_stackoverflow) * 1969-03-19 1970-10-23 Petroles Cie Francaise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5883790A (ja) * 1981-11-12 1983-05-19 住友電気工業株式会社 ドリルビット

Also Published As

Publication number Publication date
JPS5410325B2 (enrdf_load_stackoverflow) 1979-05-04

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