ES349971A1 - SHIELD FOR THE CONSTRUCTION OF TUNNELS. - Google Patents

SHIELD FOR THE CONSTRUCTION OF TUNNELS.

Info

Publication number
ES349971A1
ES349971A1 ES349971A ES349971A ES349971A1 ES 349971 A1 ES349971 A1 ES 349971A1 ES 349971 A ES349971 A ES 349971A ES 349971 A ES349971 A ES 349971A ES 349971 A1 ES349971 A1 ES 349971A1
Authority
ES
Spain
Prior art keywords
tunnels
shield
construction
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
ES349971A
Other languages
Spanish (es)
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.)
GOSUDARSTVENNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI
Original Assignee
GOSUDARSTVENNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI
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 GOSUDARSTVENNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI filed Critical GOSUDARSTVENNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI
Priority to ES349971A priority Critical patent/ES349971A1/en
Publication of ES349971A1 publication Critical patent/ES349971A1/en
Expired legal-status Critical Current

Links

ES349971A 1968-01-22 1968-01-22 SHIELD FOR THE CONSTRUCTION OF TUNNELS. Expired ES349971A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES349971A ES349971A1 (en) 1968-01-22 1968-01-22 SHIELD FOR THE CONSTRUCTION OF TUNNELS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES349971A ES349971A1 (en) 1968-01-22 1968-01-22 SHIELD FOR THE CONSTRUCTION OF TUNNELS.

Publications (1)

Publication Number Publication Date
ES349971A1 true ES349971A1 (en) 1969-04-16

Family

ID=8447696

Family Applications (1)

Application Number Title Priority Date Filing Date
ES349971A Expired ES349971A1 (en) 1968-01-22 1968-01-22 SHIELD FOR THE CONSTRUCTION OF TUNNELS.

Country Status (1)

Country Link
ES (1) ES349971A1 (en)

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