ES109977A1 - Perfections in drills to drill rock. - Google Patents

Perfections in drills to drill rock.

Info

Publication number
ES109977A1
ES109977A1 ES109977A ES109977A ES109977A1 ES 109977 A1 ES109977 A1 ES 109977A1 ES 109977 A ES109977 A ES 109977A ES 109977 A ES109977 A ES 109977A ES 109977 A1 ES109977 A1 ES 109977A1
Authority
ES
Spain
Prior art keywords
perfections
drills
drill rock
drill
rock
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
ES109977A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Priority to ES109977A priority Critical patent/ES109977A1/en
Publication of ES109977A1 publication Critical patent/ES109977A1/en
Expired legal-status Critical Current

Links

ES109977A 1928-11-03 1928-11-03 Perfections in drills to drill rock. Expired ES109977A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES109977A ES109977A1 (en) 1928-11-03 1928-11-03 Perfections in drills to drill rock.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES109977A ES109977A1 (en) 1928-11-03 1928-11-03 Perfections in drills to drill rock.

Publications (1)

Publication Number Publication Date
ES109977A1 true ES109977A1 (en) 1928-12-01

Family

ID=65571208

Family Applications (1)

Application Number Title Priority Date Filing Date
ES109977A Expired ES109977A1 (en) 1928-11-03 1928-11-03 Perfections in drills to drill rock.

Country Status (1)

Country Link
ES (1) ES109977A1 (en)

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