DEV0000798MA - Cutting device for drill bits and exchangeable spigot ends on drill rods - Google Patents

Cutting device for drill bits and exchangeable spigot ends on drill rods

Info

Publication number
DEV0000798MA
DEV0000798MA DEV0000798MA DE V0000798M A DEV0000798M A DE V0000798MA DE V0000798M A DEV0000798M A DE V0000798MA
Authority
DE
Germany
Prior art keywords
drill
exchangeable
cutting device
spigot ends
rods
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
Other languages
German (de)
Inventor
Ernst Dipl.-Berging. Vespermann
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.)
Individual
Original Assignee
Individual
Publication date

Links

Description

tsmgm % Sä lleisii* Ä« ΙώμμμιΩΜ,Φμ uxm tsmgm% Sä lleisii * Ä « ΙώμμμιΩΜ, Φμ uxm

Family

ID=

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