JPH0277378U - - Google Patents

Info

Publication number
JPH0277378U
JPH0277378U JP15666688U JP15666688U JPH0277378U JP H0277378 U JPH0277378 U JP H0277378U JP 15666688 U JP15666688 U JP 15666688U JP 15666688 U JP15666688 U JP 15666688U JP H0277378 U JPH0277378 U JP H0277378U
Authority
JP
Japan
Prior art keywords
piston
cylinder
inner tube
excavation
drilling machine
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
JP15666688U
Other languages
English (en)
Japanese (ja)
Other versions
JPH063249Y2 (ja
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 JP15666688U priority Critical patent/JPH063249Y2/ja
Publication of JPH0277378U publication Critical patent/JPH0277378U/ja
Application granted granted Critical
Publication of JPH063249Y2 publication Critical patent/JPH063249Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP15666688U 1988-12-02 1988-12-02 穿孔機の元押し装置 Expired - Lifetime JPH063249Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15666688U JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15666688U JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Publications (2)

Publication Number Publication Date
JPH0277378U true JPH0277378U (enrdf_load_stackoverflow) 1990-06-13
JPH063249Y2 JPH063249Y2 (ja) 1994-01-26

Family

ID=31435409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15666688U Expired - Lifetime JPH063249Y2 (ja) 1988-12-02 1988-12-02 穿孔機の元押し装置

Country Status (1)

Country Link
JP (1) JPH063249Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH063249Y2 (ja) 1994-01-26

Similar Documents

Publication Publication Date Title
EP0192847B1 (en) Shield tunneling machine
JPS5955992A (ja) 回転式防噴装置
JPH0277378U (enrdf_load_stackoverflow)
EP0233038A3 (en) Down-the-hole-drill
CN104963651B (zh) 新型的小型孔口防喷涌装置
NO126144B (enrdf_load_stackoverflow)
JPH0465893U (enrdf_load_stackoverflow)
JPH0417668Y2 (enrdf_load_stackoverflow)
JPH0218596U (enrdf_load_stackoverflow)
JPS6255691U (enrdf_load_stackoverflow)
JPH0284840U (enrdf_load_stackoverflow)
SU1601328A1 (ru) Колонковый снар д
JPS61121294U (enrdf_load_stackoverflow)
JPS62172793U (enrdf_load_stackoverflow)
JPS61125585U (enrdf_load_stackoverflow)
JPS61135994U (enrdf_load_stackoverflow)
JPH0318241U (enrdf_load_stackoverflow)
JPS63156299U (enrdf_load_stackoverflow)
JPS61173595U (enrdf_load_stackoverflow)
JPS63104492U (enrdf_load_stackoverflow)
JPS63161991U (enrdf_load_stackoverflow)
JPS61198396U (enrdf_load_stackoverflow)
JPS61159493U (enrdf_load_stackoverflow)
JPH0266890U (enrdf_load_stackoverflow)
GB1114849A (en) A well drill pipe string