ES411108A3 - Perfeccionamientos en equipos para la perforacion de tune- les. - Google Patents

Perfeccionamientos en equipos para la perforacion de tune- les.

Info

Publication number
ES411108A3
ES411108A3 ES411108A ES411108A ES411108A3 ES 411108 A3 ES411108 A3 ES 411108A3 ES 411108 A ES411108 A ES 411108A ES 411108 A ES411108 A ES 411108A ES 411108 A3 ES411108 A3 ES 411108A3
Authority
ES
Spain
Prior art keywords
drilling
rams
protector
equipment
car
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
ES411108A
Other languages
English (en)
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.)
REES Ltd WILLIAM F
Original Assignee
REES Ltd WILLIAM F
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 REES Ltd WILLIAM F filed Critical REES Ltd WILLIAM F
Priority to ES411108A priority Critical patent/ES411108A3/es
Publication of ES411108A3 publication Critical patent/ES411108A3/es
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
ES411108A 1973-01-30 1973-01-30 Perfeccionamientos en equipos para la perforacion de tune- les. Expired ES411108A3 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES411108A ES411108A3 (es) 1973-01-30 1973-01-30 Perfeccionamientos en equipos para la perforacion de tune- les.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES411108A ES411108A3 (es) 1973-01-30 1973-01-30 Perfeccionamientos en equipos para la perforacion de tune- les.

Publications (1)

Publication Number Publication Date
ES411108A3 true ES411108A3 (es) 1976-01-01

Family

ID=8463207

Family Applications (1)

Application Number Title Priority Date Filing Date
ES411108A Expired ES411108A3 (es) 1973-01-30 1973-01-30 Perfeccionamientos en equipos para la perforacion de tune- les.

Country Status (1)

Country Link
ES (1) ES411108A3 (es)

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