JPH0280188U - - Google Patents

Info

Publication number
JPH0280188U
JPH0280188U JP16033688U JP16033688U JPH0280188U JP H0280188 U JPH0280188 U JP H0280188U JP 16033688 U JP16033688 U JP 16033688U JP 16033688 U JP16033688 U JP 16033688U JP H0280188 U JPH0280188 U JP H0280188U
Authority
JP
Japan
Prior art keywords
bit
casing
hammer
outer diameter
hole
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
JP16033688U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0547817Y2 (cg-RX-API-DMAC7.html
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 JP1988160336U priority Critical patent/JPH0547817Y2/ja
Publication of JPH0280188U publication Critical patent/JPH0280188U/ja
Application granted granted Critical
Publication of JPH0547817Y2 publication Critical patent/JPH0547817Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1988160336U 1988-12-12 1988-12-12 Expired - Lifetime JPH0547817Y2 (cg-RX-API-DMAC7.html)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988160336U JPH0547817Y2 (cg-RX-API-DMAC7.html) 1988-12-12 1988-12-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988160336U JPH0547817Y2 (cg-RX-API-DMAC7.html) 1988-12-12 1988-12-12

Publications (2)

Publication Number Publication Date
JPH0280188U true JPH0280188U (cg-RX-API-DMAC7.html) 1990-06-20
JPH0547817Y2 JPH0547817Y2 (cg-RX-API-DMAC7.html) 1993-12-16

Family

ID=31442315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988160336U Expired - Lifetime JPH0547817Y2 (cg-RX-API-DMAC7.html) 1988-12-12 1988-12-12

Country Status (1)

Country Link
JP (1) JPH0547817Y2 (cg-RX-API-DMAC7.html)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133690U (cg-RX-API-DMAC7.html) * 1981-02-06 1982-08-20
JPS63167889A (ja) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング マルチエアハンマ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133690U (cg-RX-API-DMAC7.html) * 1981-02-06 1982-08-20
JPS63167889A (ja) * 1986-12-27 1988-07-11 株式会社　利根ボ−リング マルチエアハンマ装置

Also Published As

Publication number Publication date
JPH0547817Y2 (cg-RX-API-DMAC7.html) 1993-12-16

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