PL249665A1 - Self-advancing roof supports - Google Patents

Self-advancing roof supports

Info

Publication number
PL249665A1
PL249665A1 PL24966584A PL24966584A PL249665A1 PL 249665 A1 PL249665 A1 PL 249665A1 PL 24966584 A PL24966584 A PL 24966584A PL 24966584 A PL24966584 A PL 24966584A PL 249665 A1 PL249665 A1 PL 249665A1
Authority
PL
Poland
Prior art keywords
self
roof supports
advancing roof
advancing
supports
Prior art date
Application number
PL24966584A
Other versions
PL146225B1 (en
Inventor
Jan Adamczyk
Leszek Dobrzanski
Zbigniew Gebicki
Eugeniusz Hajduczek
Original Assignee
Politechnika Slaska Im Wincent
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 Politechnika Slaska Im Wincent filed Critical Politechnika Slaska Im Wincent
Priority to PL24966584A priority Critical patent/PL146225B1/en
Publication of PL249665A1 publication Critical patent/PL249665A1/en
Publication of PL146225B1 publication Critical patent/PL146225B1/en

Links

PL24966584A 1984-09-20 1984-09-20 Yieldable protective device for a self-advancing roof support PL146225B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL24966584A PL146225B1 (en) 1984-09-20 1984-09-20 Yieldable protective device for a self-advancing roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL24966584A PL146225B1 (en) 1984-09-20 1984-09-20 Yieldable protective device for a self-advancing roof support

Publications (2)

Publication Number Publication Date
PL249665A1 true PL249665A1 (en) 1986-03-25
PL146225B1 PL146225B1 (en) 1989-01-31

Family

ID=20023461

Family Applications (1)

Application Number Title Priority Date Filing Date
PL24966584A PL146225B1 (en) 1984-09-20 1984-09-20 Yieldable protective device for a self-advancing roof support

Country Status (1)

Country Link
PL (1) PL146225B1 (en)

Also Published As

Publication number Publication date
PL146225B1 (en) 1989-01-31

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