DD253925A3 - Nachnahmebohrer - Google Patents

Nachnahmebohrer

Info

Publication number
DD253925A3
DD253925A3 DD26153184A DD26153184A DD253925A3 DD 253925 A3 DD253925 A3 DD 253925A3 DD 26153184 A DD26153184 A DD 26153184A DD 26153184 A DD26153184 A DD 26153184A DD 253925 A3 DD253925 A3 DD 253925A3
Authority
DD
German Democratic Republic
Prior art keywords
cod
drill
cod drill
Prior art date
Application number
DD26153184A
Other languages
English (en)
Inventor
Nikolaj A Beljaev
Original Assignee
Inst Gornogo Delaso An Sssr
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 Inst Gornogo Delaso An Sssr filed Critical Inst Gornogo Delaso An Sssr
Publication of DD253925A3 publication Critical patent/DD253925A3/de

Links

DD26153184A 1983-04-12 1984-04-03 Nachnahmebohrer DD253925A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833578132A SU1167293A1 (ru) 1983-04-12 1983-04-12 Расширитель скважин

Publications (1)

Publication Number Publication Date
DD253925A3 true DD253925A3 (de) 1988-02-10

Family

ID=21058667

Family Applications (1)

Application Number Title Priority Date Filing Date
DD26153184A DD253925A3 (de) 1983-04-12 1984-04-03 Nachnahmebohrer

Country Status (3)

Country Link
BG (1) BG45648A1 (de)
DD (1) DD253925A3 (de)
SU (1) SU1167293A1 (de)

Also Published As

Publication number Publication date
BG45648A1 (en) 1989-07-14
SU1167293A1 (ru) 1985-07-15

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Legal Events

Date Code Title Description
ENJ Ceased due to non-payment of renewal fee
ENJ Ceased due to non-payment of renewal fee