PL288132A1 - Shield-type self-advancing roof supports and method of advancing them - Google Patents

Shield-type self-advancing roof supports and method of advancing them

Info

Publication number
PL288132A1
PL288132A1 PL28813290A PL28813290A PL288132A1 PL 288132 A1 PL288132 A1 PL 288132A1 PL 28813290 A PL28813290 A PL 28813290A PL 28813290 A PL28813290 A PL 28813290A PL 288132 A1 PL288132 A1 PL 288132A1
Authority
PL
Poland
Prior art keywords
advancing
shield
type self
roof supports
supports
Prior art date
Application number
PL28813290A
Inventor
Jan Duda
Wladyslaw Dabrowski
Tadeusz Mijal
Jerzy Nowak
Antoni Trzensiok
Eugeniusz Ferdin
Andrzej Urzedowski
Original Assignee
Ct Kopalnia Wegla Kamiennego
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 Ct Kopalnia Wegla Kamiennego filed Critical Ct Kopalnia Wegla Kamiennego
Priority to PL28813290A priority Critical patent/PL288132A1/en
Publication of PL288132A1 publication Critical patent/PL288132A1/en

Links

PL28813290A 1990-12-05 1990-12-05 Shield-type self-advancing roof supports and method of advancing them PL288132A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL28813290A PL288132A1 (en) 1990-12-05 1990-12-05 Shield-type self-advancing roof supports and method of advancing them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL28813290A PL288132A1 (en) 1990-12-05 1990-12-05 Shield-type self-advancing roof supports and method of advancing them

Publications (1)

Publication Number Publication Date
PL288132A1 true PL288132A1 (en) 1992-06-15

Family

ID=20053124

Family Applications (1)

Application Number Title Priority Date Filing Date
PL28813290A PL288132A1 (en) 1990-12-05 1990-12-05 Shield-type self-advancing roof supports and method of advancing them

Country Status (1)

Country Link
PL (1) PL288132A1 (en)

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