PL81002B2 - - Google Patents

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Publication number
PL81002B2
PL81002B2 PL13379969A PL13379969A PL81002B2 PL 81002 B2 PL81002 B2 PL 81002B2 PL 13379969 A PL13379969 A PL 13379969A PL 13379969 A PL13379969 A PL 13379969A PL 81002 B2 PL81002 B2 PL 81002B2
Authority
PL
Poland
Prior art keywords
layer
layers
supports
conveyor
ceiling
Prior art date
Application number
PL13379969A
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 PL13379969A priority Critical patent/PL81002B2/pl
Publication of PL81002B2 publication Critical patent/PL81002B2/pl

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  • Excavating Of Shafts Or Tunnels (AREA)
PL13379969A 1969-05-24 1969-05-24 PL81002B2 (enExample)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13379969A PL81002B2 (enExample) 1969-05-24 1969-05-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL13379969A PL81002B2 (enExample) 1969-05-24 1969-05-24

Publications (1)

Publication Number Publication Date
PL81002B2 true PL81002B2 (enExample) 1975-08-30

Family

ID=19950600

Family Applications (1)

Application Number Title Priority Date Filing Date
PL13379969A PL81002B2 (enExample) 1969-05-24 1969-05-24

Country Status (1)

Country Link
PL (1) PL81002B2 (enExample)

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