PL294890A1 - Prop for protecting workings roofs especially in areas of high crump hazard - Google Patents

Prop for protecting workings roofs especially in areas of high crump hazard

Info

Publication number
PL294890A1
PL294890A1 PL29489092A PL29489092A PL294890A1 PL 294890 A1 PL294890 A1 PL 294890A1 PL 29489092 A PL29489092 A PL 29489092A PL 29489092 A PL29489092 A PL 29489092A PL 294890 A1 PL294890 A1 PL 294890A1
Authority
PL
Poland
Prior art keywords
workings
roofs
prop
protecting
areas
Prior art date
Application number
PL29489092A
Other versions
PL167842B1 (en
Inventor
Jozef Kowal
Edward Kowalski
Jan Perek
Kazimierz Stoinski
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 PL29489092A priority Critical patent/PL167842B1/en
Publication of PL294890A1 publication Critical patent/PL294890A1/en
Publication of PL167842B1 publication Critical patent/PL167842B1/en

Links

PL29489092A 1992-06-12 1992-06-12 Stand for securing mining excavations, especially those endangered with rock bursts PL167842B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL29489092A PL167842B1 (en) 1992-06-12 1992-06-12 Stand for securing mining excavations, especially those endangered with rock bursts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL29489092A PL167842B1 (en) 1992-06-12 1992-06-12 Stand for securing mining excavations, especially those endangered with rock bursts

Publications (2)

Publication Number Publication Date
PL294890A1 true PL294890A1 (en) 1993-12-13
PL167842B1 PL167842B1 (en) 1995-11-30

Family

ID=20057798

Family Applications (1)

Application Number Title Priority Date Filing Date
PL29489092A PL167842B1 (en) 1992-06-12 1992-06-12 Stand for securing mining excavations, especially those endangered with rock bursts

Country Status (1)

Country Link
PL (1) PL167842B1 (en)

Also Published As

Publication number Publication date
PL167842B1 (en) 1995-11-30

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