PL92172B2 - - Google Patents

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Publication number
PL92172B2
PL92172B2 PL177548A PL17754875A PL92172B2 PL 92172 B2 PL92172 B2 PL 92172B2 PL 177548 A PL177548 A PL 177548A PL 17754875 A PL17754875 A PL 17754875A PL 92172 B2 PL92172 B2 PL 92172B2
Authority
PL
Poland
Prior art keywords
ceiling
walls
void
building
collapsing
Prior art date
Application number
PL177548A
Other languages
English (en)
Polish (pl)
Inventor
Musialik Jan
Kandzia Antoni
Stelmach Stanislaw
Golaszewski Antoni
Original Assignee
Kopalnia Wegla Kamiennego „Bobrek"
Filing date
Publication date
Application filed by Kopalnia Wegla Kamiennego „Bobrek" filed Critical Kopalnia Wegla Kamiennego „Bobrek"
Publication of PL92172B2 publication Critical patent/PL92172B2/pl

Links

PL177548A 1975-01-24 PL92172B2 (enExample)

Publications (1)

Publication Number Publication Date
PL92172B2 true PL92172B2 (enExample) 1977-03-31

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