PL345477A3 - Roof supports for protecting dog headings of rectangular cross-section - Google Patents

Roof supports for protecting dog headings of rectangular cross-section

Info

Publication number
PL345477A3
PL345477A3 PL34547701A PL34547701A PL345477A3 PL 345477 A3 PL345477 A3 PL 345477A3 PL 34547701 A PL34547701 A PL 34547701A PL 34547701 A PL34547701 A PL 34547701A PL 345477 A3 PL345477 A3 PL 345477A3
Authority
PL
Poland
Prior art keywords
section
rectangular cross
roof supports
protecting
headings
Prior art date
Application number
PL34547701A
Other versions
PL193329B3 (en
Inventor
Edward Kowalski
Marek Rotkegel
Kazimierz Rulka
Krzysztof Skrzynski
Stanislaw Stalega
Original Assignee
Glowny Instytut Gornictwa
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 Glowny Instytut Gornictwa filed Critical Glowny Instytut Gornictwa
Priority to PL345477A priority Critical patent/PL193329B3/en
Publication of PL345477A3 publication Critical patent/PL345477A3/en
Publication of PL193329B3 publication Critical patent/PL193329B3/en

Links

PL345477A 2001-01-25 2001-01-25 Roof supports for protecting dog headings of rectangular cross-section PL193329B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL345477A PL193329B3 (en) 2001-01-25 2001-01-25 Roof supports for protecting dog headings of rectangular cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL345477A PL193329B3 (en) 2001-01-25 2001-01-25 Roof supports for protecting dog headings of rectangular cross-section

Publications (2)

Publication Number Publication Date
PL345477A3 true PL345477A3 (en) 2002-07-29
PL193329B3 PL193329B3 (en) 2007-02-28

Family

ID=20078287

Family Applications (1)

Application Number Title Priority Date Filing Date
PL345477A PL193329B3 (en) 2001-01-25 2001-01-25 Roof supports for protecting dog headings of rectangular cross-section

Country Status (1)

Country Link
PL (1) PL193329B3 (en)

Also Published As

Publication number Publication date
PL193329B3 (en) 2007-02-28

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