AT217407B - Extension roller bits - Google Patents
Extension roller bitsInfo
- Publication number
- AT217407B AT217407B AT225660A AT225660A AT217407B AT 217407 B AT217407 B AT 217407B AT 225660 A AT225660 A AT 225660A AT 225660 A AT225660 A AT 225660A AT 217407 B AT217407 B AT 217407B
- Authority
- AT
- Austria
- Prior art keywords
- extension roller
- roller bits
- bits
- extension
- roller
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE217407T | 1959-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT217407B true AT217407B (en) | 1961-10-10 |
Family
ID=29592669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT225660A AT217407B (en) | 1959-04-09 | 1960-03-24 | Extension roller bits |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT217407B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514505A1 (en) * | 1975-04-02 | 1976-10-21 | Dorogi Szenbanyak Fa | Mine heading supporting system - cylinder splays arch support members out to stress rock finally |
-
1960
- 1960-03-24 AT AT225660A patent/AT217407B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2514505A1 (en) * | 1975-04-02 | 1976-10-21 | Dorogi Szenbanyak Fa | Mine heading supporting system - cylinder splays arch support members out to stress rock finally |
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