JPH0448157B2 - - Google Patents

Info

Publication number
JPH0448157B2
JPH0448157B2 JP1225587A JP1225587A JPH0448157B2 JP H0448157 B2 JPH0448157 B2 JP H0448157B2 JP 1225587 A JP1225587 A JP 1225587A JP 1225587 A JP1225587 A JP 1225587A JP H0448157 B2 JPH0448157 B2 JP H0448157B2
Authority
JP
Japan
Prior art keywords
bit
casing
carrier
striking
hammer
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.)
Expired
Application number
JP1225587A
Other languages
English (en)
Japanese (ja)
Other versions
JPS63181884A (ja
Inventor
Akira Ito
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.)
Yokoyama Kiso Kohji Co Ltd
Original Assignee
Yokoyama Kiso Kohji 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 Yokoyama Kiso Kohji Co Ltd filed Critical Yokoyama Kiso Kohji Co Ltd
Priority to JP1225587A priority Critical patent/JPS63181884A/ja
Publication of JPS63181884A publication Critical patent/JPS63181884A/ja
Publication of JPH0448157B2 publication Critical patent/JPH0448157B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1225587A 1987-01-23 1987-01-23 ハンマ−掘削機 Granted JPS63181884A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1225587A JPS63181884A (ja) 1987-01-23 1987-01-23 ハンマ−掘削機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1225587A JPS63181884A (ja) 1987-01-23 1987-01-23 ハンマ−掘削機

Publications (2)

Publication Number Publication Date
JPS63181884A JPS63181884A (ja) 1988-07-27
JPH0448157B2 true JPH0448157B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-08-05

Family

ID=11800257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1225587A Granted JPS63181884A (ja) 1987-01-23 1987-01-23 ハンマ−掘削機

Country Status (1)

Country Link
JP (1) JPS63181884A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5987487B2 (ja) * 2011-06-17 2016-09-07 株式会社永井組 削孔装置および矢板の施工方法

Also Published As

Publication number Publication date
JPS63181884A (ja) 1988-07-27

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

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LAPS Cancellation because of no payment of annual fees