PL280456A3 - Self-advancing roof supports - Google Patents

Self-advancing roof supports

Info

Publication number
PL280456A3
PL280456A3 PL28045689A PL28045689A PL280456A3 PL 280456 A3 PL280456 A3 PL 280456A3 PL 28045689 A PL28045689 A PL 28045689A PL 28045689 A PL28045689 A PL 28045689A PL 280456 A3 PL280456 A3 PL 280456A3
Authority
PL
Poland
Prior art keywords
self
roof supports
advancing roof
advancing
supports
Prior art date
Application number
PL28045689A
Other versions
PL159965B3 (en
Inventor
Jan Lenard
Jan Gawenda
Jan Dziuk
Wincenty Pretor
Hubert Pelka
Bronislaw Niemczyk
Original Assignee
Ct Kt Maszyn Gorniczych Komag
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 Ct Kt Maszyn Gorniczych Komag filed Critical Ct Kt Maszyn Gorniczych Komag
Priority to PL28045689A priority Critical patent/PL159965B3/en
Publication of PL280456A3 publication Critical patent/PL280456A3/en
Publication of PL159965B3 publication Critical patent/PL159965B3/en

Links

PL28045689A 1989-07-05 1989-07-05 Roof supports PL159965B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL28045689A PL159965B3 (en) 1989-07-05 1989-07-05 Roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL28045689A PL159965B3 (en) 1989-07-05 1989-07-05 Roof supports

Publications (2)

Publication Number Publication Date
PL280456A3 true PL280456A3 (en) 1991-01-14
PL159965B3 PL159965B3 (en) 1993-01-29

Family

ID=20047888

Family Applications (1)

Application Number Title Priority Date Filing Date
PL28045689A PL159965B3 (en) 1989-07-05 1989-07-05 Roof supports

Country Status (1)

Country Link
PL (1) PL159965B3 (en)

Also Published As

Publication number Publication date
PL159965B3 (en) 1993-01-29

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