ATE78747T1 - DRILLING DEVICE FOR PRODUCTION OF DRILL HOLES WITH UNDERCUTTING. - Google Patents
DRILLING DEVICE FOR PRODUCTION OF DRILL HOLES WITH UNDERCUTTING.Info
- Publication number
- ATE78747T1 ATE78747T1 AT89115757T AT89115757T ATE78747T1 AT E78747 T1 ATE78747 T1 AT E78747T1 AT 89115757 T AT89115757 T AT 89115757T AT 89115757 T AT89115757 T AT 89115757T AT E78747 T1 ATE78747 T1 AT E78747T1
- Authority
- AT
- Austria
- Prior art keywords
- undercutting
- production
- drilling device
- drill holes
- drill
- Prior art date
Links
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3835025A DE3835025A1 (en) | 1988-10-14 | 1988-10-14 | DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT |
DE3903369A DE3903369A1 (en) | 1988-10-14 | 1989-02-04 | DRILLING DEVICE FOR PRODUCING DRILL HOLES WITH UNDERCUT |
EP89115757A EP0363617B1 (en) | 1988-10-14 | 1989-08-26 | Drilling device for producing drilled holes with recesses |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE78747T1 true ATE78747T1 (en) | 1992-08-15 |
Family
ID=27198372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT89115757T ATE78747T1 (en) | 1988-10-14 | 1989-08-26 | DRILLING DEVICE FOR PRODUCTION OF DRILL HOLES WITH UNDERCUTTING. |
Country Status (1)
Country | Link |
---|---|
AT (1) | ATE78747T1 (en) |
-
1989
- 1989-08-26 AT AT89115757T patent/ATE78747T1/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |