ES71661A3 - A machine to open tunnels. - Google Patents

A machine to open tunnels.

Info

Publication number
ES71661A3
ES71661A3 ES71661A ES71661A ES71661A3 ES 71661 A3 ES71661 A3 ES 71661A3 ES 71661 A ES71661 A ES 71661A ES 71661 A ES71661 A ES 71661A ES 71661 A3 ES71661 A3 ES 71661A3
Authority
ES
Spain
Prior art keywords
machine
open tunnels
tunnels
open
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
ES71661A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to ES71661A priority Critical patent/ES71661A3/en
Publication of ES71661A3 publication Critical patent/ES71661A3/en
Expired legal-status Critical Current

Links

ES71661A 1919-12-10 1919-12-10 A machine to open tunnels. Expired ES71661A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES71661A ES71661A3 (en) 1919-12-10 1919-12-10 A machine to open tunnels.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES71661A ES71661A3 (en) 1919-12-10 1919-12-10 A machine to open tunnels.

Publications (1)

Publication Number Publication Date
ES71661A3 true ES71661A3 (en) 1920-03-01

Family

ID=69407492

Family Applications (1)

Application Number Title Priority Date Filing Date
ES71661A Expired ES71661A3 (en) 1919-12-10 1919-12-10 A machine to open tunnels.

Country Status (1)

Country Link
ES (1) ES71661A3 (en)

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