PL253950A1 - Self-advancing roof supports - Google Patents

Self-advancing roof supports

Info

Publication number
PL253950A1
PL253950A1 PL25395085A PL25395085A PL253950A1 PL 253950 A1 PL253950 A1 PL 253950A1 PL 25395085 A PL25395085 A PL 25395085A PL 25395085 A PL25395085 A PL 25395085A PL 253950 A1 PL253950 A1 PL 253950A1
Authority
PL
Poland
Prior art keywords
self
roof supports
advancing roof
advancing
supports
Prior art date
Application number
PL25395085A
Other versions
PL147830B1 (en
Inventor
Jerzy Cieslik
Ginter Grzesik
Zdzislaw Marszycki
Zofia Chwieduk
Jacek Cholewa
Lucja Fiolka
Original Assignee
Polmag
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 Polmag filed Critical Polmag
Priority to PL25395085A priority Critical patent/PL147830B1/en
Publication of PL253950A1 publication Critical patent/PL253950A1/en
Publication of PL147830B1 publication Critical patent/PL147830B1/en

Links

PL25395085A 1985-06-13 1985-06-13 Self-advancing roof supports PL147830B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25395085A PL147830B1 (en) 1985-06-13 1985-06-13 Self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25395085A PL147830B1 (en) 1985-06-13 1985-06-13 Self-advancing roof supports

Publications (2)

Publication Number Publication Date
PL253950A1 true PL253950A1 (en) 1986-12-30
PL147830B1 PL147830B1 (en) 1989-08-31

Family

ID=20027084

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25395085A PL147830B1 (en) 1985-06-13 1985-06-13 Self-advancing roof supports

Country Status (1)

Country Link
PL (1) PL147830B1 (en)

Also Published As

Publication number Publication date
PL147830B1 (en) 1989-08-31

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