PL297682A1 - Self-advancing roof supports - Google Patents

Self-advancing roof supports

Info

Publication number
PL297682A1
PL297682A1 PL29768293A PL29768293A PL297682A1 PL 297682 A1 PL297682 A1 PL 297682A1 PL 29768293 A PL29768293 A PL 29768293A PL 29768293 A PL29768293 A PL 29768293A PL 297682 A1 PL297682 A1 PL 297682A1
Authority
PL
Poland
Prior art keywords
self
roof supports
advancing roof
advancing
supports
Prior art date
Application number
PL29768293A
Inventor
Jan Boguslaw Gwiazda
Aleksander Stanislaw Gwiazda
Original Assignee
Gwiazda Jan B
Aleksander Stanislaw Gwiazda
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 Gwiazda Jan B, Aleksander Stanislaw Gwiazda filed Critical Gwiazda Jan B
Priority to PL29768293A priority Critical patent/PL297682A1/en
Publication of PL297682A1 publication Critical patent/PL297682A1/en

Links

PL29768293A 1993-02-08 1993-02-08 Self-advancing roof supports PL297682A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL29768293A PL297682A1 (en) 1993-02-08 1993-02-08 Self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL29768293A PL297682A1 (en) 1993-02-08 1993-02-08 Self-advancing roof supports

Publications (1)

Publication Number Publication Date
PL297682A1 true PL297682A1 (en) 1994-08-22

Family

ID=20059519

Family Applications (1)

Application Number Title Priority Date Filing Date
PL29768293A PL297682A1 (en) 1993-02-08 1993-02-08 Self-advancing roof supports

Country Status (1)

Country Link
PL (1) PL297682A1 (en)

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