AT189901B - Method of making rock drill bits - Google Patents

Method of making rock drill bits

Info

Publication number
AT189901B
AT189901B AT189901DA AT189901B AT 189901 B AT189901 B AT 189901B AT 189901D A AT189901D A AT 189901DA AT 189901 B AT189901 B AT 189901B
Authority
AT
Austria
Prior art keywords
drill bits
rock drill
making rock
making
bits
Prior art date
Application number
Other languages
German (de)
Inventor
Hugo Dr Ing Juvan
Original Assignee
Schoeller Bleckmann Stahlwerke
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 Schoeller Bleckmann Stahlwerke filed Critical Schoeller Bleckmann Stahlwerke
Application granted granted Critical
Publication of AT189901B publication Critical patent/AT189901B/en

Links

AT189901D 1954-12-04 1954-12-04 Method of making rock drill bits AT189901B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT189901T 1954-12-04

Publications (1)

Publication Number Publication Date
AT189901B true AT189901B (en) 1957-05-25

Family

ID=3664915

Family Applications (1)

Application Number Title Priority Date Filing Date
AT189901D AT189901B (en) 1954-12-04 1954-12-04 Method of making rock drill bits

Country Status (1)

Country Link
AT (1) AT189901B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749051A (en) * 1984-10-01 1988-06-07 Santrade Limited Drill steel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4749051A (en) * 1984-10-01 1988-06-07 Santrade Limited Drill steel

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