PL111998B2 - Roof-bar for mechanized mine roof supports - Google Patents

Roof-bar for mechanized mine roof supports

Info

Publication number
PL111998B2
PL111998B2 PL20965878A PL20965878A PL111998B2 PL 111998 B2 PL111998 B2 PL 111998B2 PL 20965878 A PL20965878 A PL 20965878A PL 20965878 A PL20965878 A PL 20965878A PL 111998 B2 PL111998 B2 PL 111998B2
Authority
PL
Poland
Prior art keywords
roof
bar
supports
mechanized mine
mechanized
Prior art date
Application number
PL20965878A
Other languages
English (en)
Other versions
PL209658A1 (pl
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 filed Critical
Priority to PL20965878A priority Critical patent/PL111998B2/xx
Publication of PL209658A1 publication Critical patent/PL209658A1/pl
Publication of PL111998B2 publication Critical patent/PL111998B2/xx

Links

PL20965878A 1978-09-18 1978-09-18 Roof-bar for mechanized mine roof supports PL111998B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20965878A PL111998B2 (en) 1978-09-18 1978-09-18 Roof-bar for mechanized mine roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL20965878A PL111998B2 (en) 1978-09-18 1978-09-18 Roof-bar for mechanized mine roof supports

Publications (2)

Publication Number Publication Date
PL209658A1 PL209658A1 (pl) 1979-08-13
PL111998B2 true PL111998B2 (en) 1980-09-30

Family

ID=19991517

Family Applications (1)

Application Number Title Priority Date Filing Date
PL20965878A PL111998B2 (en) 1978-09-18 1978-09-18 Roof-bar for mechanized mine roof supports

Country Status (1)

Country Link
PL (1) PL111998B2 (pl)

Also Published As

Publication number Publication date
PL209658A1 (pl) 1979-08-13

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