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ES173073Y - DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS. - Google Patents

DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS.

Info

Publication number
ES173073Y
ES173073Y ES1971173073U ES173073U ES173073Y ES 173073 Y ES173073 Y ES 173073Y ES 1971173073 U ES1971173073 U ES 1971173073U ES 173073 U ES173073 U ES 173073U ES 173073 Y ES173073 Y ES 173073Y
Authority
ES
Spain
Prior art keywords
chokers
drilling
depth
increasing
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
ES1971173073U
Other languages
Spanish (es)
Other versions
ES173073U (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.)
Talleres Schott-Dubon S A
Original Assignee
Talleres Schott-Dubon S A
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 Talleres Schott-Dubon S A filed Critical Talleres Schott-Dubon S A
Priority to ES1971173073U priority Critical patent/ES173073Y/en
Publication of ES173073U publication Critical patent/ES173073U/en
Application granted granted Critical
Publication of ES173073Y publication Critical patent/ES173073Y/en
Expired legal-status Critical Current

Links

ES1971173073U 1971-10-06 1971-10-06 DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS. Expired ES173073Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES1971173073U ES173073Y (en) 1971-10-06 1971-10-06 DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1971173073U ES173073Y (en) 1971-10-06 1971-10-06 DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS.

Publications (2)

Publication Number Publication Date
ES173073U ES173073U (en) 1972-02-16
ES173073Y true ES173073Y (en) 1972-09-01

Family

ID=8348004

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1971173073U Expired ES173073Y (en) 1971-10-06 1971-10-06 DEVICE FOR INCREASING THE DEPTH OF DRILLING OF THE CHOKERS.

Country Status (1)

Country Link
ES (1) ES173073Y (en)

Also Published As

Publication number Publication date
ES173073U (en) 1972-02-16

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