PL247982A1 - Closed steel arching for galleries - Google Patents

Closed steel arching for galleries

Info

Publication number
PL247982A1
PL247982A1 PL24798284A PL24798284A PL247982A1 PL 247982 A1 PL247982 A1 PL 247982A1 PL 24798284 A PL24798284 A PL 24798284A PL 24798284 A PL24798284 A PL 24798284A PL 247982 A1 PL247982 A1 PL 247982A1
Authority
PL
Poland
Prior art keywords
galleries
closed steel
arching
steel arching
closed
Prior art date
Application number
PL24798284A
Inventor
Edward Pierzchala
Ernest Kostka
Marian Tender
Ireneusz Czarnecki
Jerzy Zdebik
Jan Buszta
Piotr Chrobok
Original Assignee
Kopalnia Wegla Kamiennego Stas
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 Kopalnia Wegla Kamiennego Stas filed Critical Kopalnia Wegla Kamiennego Stas
Priority to PL24798284A priority Critical patent/PL247982A1/en
Publication of PL247982A1 publication Critical patent/PL247982A1/en

Links

PL24798284A 1984-05-30 1984-05-30 Closed steel arching for galleries PL247982A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL24798284A PL247982A1 (en) 1984-05-30 1984-05-30 Closed steel arching for galleries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL24798284A PL247982A1 (en) 1984-05-30 1984-05-30 Closed steel arching for galleries

Publications (1)

Publication Number Publication Date
PL247982A1 true PL247982A1 (en) 1985-12-03

Family

ID=20022038

Family Applications (1)

Application Number Title Priority Date Filing Date
PL24798284A PL247982A1 (en) 1984-05-30 1984-05-30 Closed steel arching for galleries

Country Status (1)

Country Link
PL (1) PL247982A1 (en)

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