AT217407B - Extension roller bits - Google Patents

Extension roller bits

Info

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
Application number
AT225660A
Other languages
German (de)
Original Assignee
Bergwerksverband Gmbh
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 Bergwerksverband Gmbh filed Critical Bergwerksverband Gmbh
Application granted granted Critical
Publication of AT217407B publication Critical patent/AT217407B/en

Links

AT225660A 1959-04-09 1960-03-24 Extension roller bits AT217407B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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