KR950019210U - 빗드 - Google Patents

빗드

Info

Publication number
KR950019210U
KR950019210U KR2019930028446U KR930028446U KR950019210U KR 950019210 U KR950019210 U KR 950019210U KR 2019930028446 U KR2019930028446 U KR 2019930028446U KR 930028446 U KR930028446 U KR 930028446U KR 950019210 U KR950019210 U KR 950019210U
Authority
KR
South Korea
Prior art keywords
bead
Prior art date
Application number
KR2019930028446U
Other languages
English (en)
Other versions
KR960002342Y1 (ko
Inventor
장인수
Original Assignee
장인수
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 장인수 filed Critical 장인수
Priority to KR2019930028446U priority Critical patent/KR960002342Y1/ko
Publication of KR950019210U publication Critical patent/KR950019210U/ko
Application granted granted Critical
Publication of KR960002342Y1 publication Critical patent/KR960002342Y1/ko

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
KR2019930028446U 1993-12-18 1993-12-18 빗드 KR960002342Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019930028446U KR960002342Y1 (ko) 1993-12-18 1993-12-18 빗드

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019930028446U KR960002342Y1 (ko) 1993-12-18 1993-12-18 빗드

Publications (2)

Publication Number Publication Date
KR950019210U true KR950019210U (ko) 1995-07-24
KR960002342Y1 KR960002342Y1 (ko) 1996-03-20

Family

ID=19371619

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019930028446U KR960002342Y1 (ko) 1993-12-18 1993-12-18 빗드

Country Status (1)

Country Link
KR (1) KR960002342Y1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100625857B1 (ko) * 2004-06-29 2006-09-20 백남진 천공 비트

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100625857B1 (ko) * 2004-06-29 2006-09-20 백남진 천공 비트

Also Published As

Publication number Publication date
KR960002342Y1 (ko) 1996-03-20

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
LAPS Lapse due to unpaid annual fee