RO77154A2 - TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER - Google Patents

TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER

Info

Publication number
RO77154A2
RO77154A2 RO81103119A RO10311981A RO77154A2 RO 77154 A2 RO77154 A2 RO 77154A2 RO 81103119 A RO81103119 A RO 81103119A RO 10311981 A RO10311981 A RO 10311981A RO 77154 A2 RO77154 A2 RO 77154A2
Authority
RO
Romania
Prior art keywords
trepan
large diameter
drilling holes
drilling
holes
Prior art date
Application number
RO81103119A
Other languages
French (fr)
Romanian (ro)
Inventor
Dan A Mihailescu
Alexandru Radulescu
Dumitru Gradisteanu
Mihai Topciu
Nicolae V Mereanu
Ion Mohora
Spiridonm Woinarcski
Constantin Iacobescu
Sebastian Ionescu
Original Assignee
Institutul De Cercetare Si Inginerie Tehnologica Pentru Utilaj Petrolier Si Minier,Ro
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 Institutul De Cercetare Si Inginerie Tehnologica Pentru Utilaj Petrolier Si Minier,Ro filed Critical Institutul De Cercetare Si Inginerie Tehnologica Pentru Utilaj Petrolier Si Minier,Ro
Priority to RO81103119A priority Critical patent/RO77154A2/en
Publication of RO77154A2 publication Critical patent/RO77154A2/en

Links

RO81103119A 1981-01-14 1981-01-14 TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER RO77154A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO81103119A RO77154A2 (en) 1981-01-14 1981-01-14 TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO81103119A RO77154A2 (en) 1981-01-14 1981-01-14 TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER

Publications (1)

Publication Number Publication Date
RO77154A2 true RO77154A2 (en) 1982-04-12

Family

ID=20109419

Family Applications (1)

Application Number Title Priority Date Filing Date
RO81103119A RO77154A2 (en) 1981-01-14 1981-01-14 TREPAN FOR DRILLING HOLES WITH A LARGE DIAMETER

Country Status (1)

Country Link
RO (1) RO77154A2 (en)

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