JPS5841179A - さく溝用ビツト - Google Patents

さく溝用ビツト

Info

Publication number
JPS5841179A
JPS5841179A JP13872181A JP13872181A JPS5841179A JP S5841179 A JPS5841179 A JP S5841179A JP 13872181 A JP13872181 A JP 13872181A JP 13872181 A JP13872181 A JP 13872181A JP S5841179 A JPS5841179 A JP S5841179A
Authority
JP
Japan
Prior art keywords
hole
groove
drilling
part structure
bit
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.)
Granted
Application number
JP13872181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6238516B2 (enrdf_load_stackoverflow
Inventor
西尾　岱之
渋川　隆夫
勇司 小野
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.)
Mazda Motor Corp
Aska Pharmaceutical Co Ltd
Original Assignee
Teikoku Hormone Manufacturing Co Ltd
Toyo Kogyo Co Ltd
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 by Teikoku Hormone Manufacturing Co Ltd, Toyo Kogyo Co Ltd filed Critical Teikoku Hormone Manufacturing Co Ltd
Priority to JP13872181A priority Critical patent/JPS5841179A/ja
Publication of JPS5841179A publication Critical patent/JPS5841179A/ja
Publication of JPS6238516B2 publication Critical patent/JPS6238516B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP13872181A 1981-09-02 1981-09-02 さく溝用ビツト Granted JPS5841179A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13872181A JPS5841179A (ja) 1981-09-02 1981-09-02 さく溝用ビツト

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13872181A JPS5841179A (ja) 1981-09-02 1981-09-02 さく溝用ビツト

Publications (2)

Publication Number Publication Date
JPS5841179A true JPS5841179A (ja) 1983-03-10
JPS6238516B2 JPS6238516B2 (enrdf_load_stackoverflow) 1987-08-18

Family

ID=15228584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13872181A Granted JPS5841179A (ja) 1981-09-02 1981-09-02 さく溝用ビツト

Country Status (1)

Country Link
JP (1) JPS5841179A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS6238516B2 (enrdf_load_stackoverflow) 1987-08-18

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