PL84228B1 - - Google Patents

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Publication number
PL84228B1
PL84228B1 PL16019473A PL16019473A PL84228B1 PL 84228 B1 PL84228 B1 PL 84228B1 PL 16019473 A PL16019473 A PL 16019473A PL 16019473 A PL16019473 A PL 16019473A PL 84228 B1 PL84228 B1 PL 84228B1
Authority
PL
Poland
Prior art keywords
collapse
wall
roof
excavation
heading
Prior art date
Application number
PL16019473A
Other languages
English (en)
Polish (pl)
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 filed Critical
Priority to PL16019473A priority Critical patent/PL84228B1/pl
Publication of PL84228B1 publication Critical patent/PL84228B1/pl

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  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
PL16019473A 1973-01-08 1973-01-08 PL84228B1 (OSRAM)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16019473A PL84228B1 (OSRAM) 1973-01-08 1973-01-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL16019473A PL84228B1 (OSRAM) 1973-01-08 1973-01-08

Publications (1)

Publication Number Publication Date
PL84228B1 true PL84228B1 (OSRAM) 1976-03-31

Family

ID=19961370

Family Applications (1)

Application Number Title Priority Date Filing Date
PL16019473A PL84228B1 (OSRAM) 1973-01-08 1973-01-08

Country Status (1)

Country Link
PL (1) PL84228B1 (OSRAM)

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