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PL257404A1 - Self-advancing roof supports unit - Google Patents

Self-advancing roof supports unit

Info

Publication number
PL257404A1
PL257404A1 PL25740486A PL25740486A PL257404A1 PL 257404 A1 PL257404 A1 PL 257404A1 PL 25740486 A PL25740486 A PL 25740486A PL 25740486 A PL25740486 A PL 25740486A PL 257404 A1 PL257404 A1 PL 257404A1
Authority
PL
Poland
Prior art keywords
self
roof supports
supports unit
advancing roof
advancing
Prior art date
Application number
PL25740486A
Other versions
PL149367B1 (en
Inventor
Edward Pierzchala
Stanislaw Zadlo
Jerzy Wisniewski
Original Assignee
Katowickie Gwarectwo Weglowe K
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 Katowickie Gwarectwo Weglowe K filed Critical Katowickie Gwarectwo Weglowe K
Priority to PL25740486A priority Critical patent/PL149367B1/en
Publication of PL257404A1 publication Critical patent/PL257404A1/en
Publication of PL149367B1 publication Critical patent/PL149367B1/en

Links

PL25740486A 1986-01-07 1986-01-07 Self-advancing roof supports unit PL149367B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25740486A PL149367B1 (en) 1986-01-07 1986-01-07 Self-advancing roof supports unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25740486A PL149367B1 (en) 1986-01-07 1986-01-07 Self-advancing roof supports unit

Publications (2)

Publication Number Publication Date
PL257404A1 true PL257404A1 (en) 1987-09-07
PL149367B1 PL149367B1 (en) 1990-02-28

Family

ID=20030015

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25740486A PL149367B1 (en) 1986-01-07 1986-01-07 Self-advancing roof supports unit

Country Status (1)

Country Link
PL (1) PL149367B1 (en)

Also Published As

Publication number Publication date
PL149367B1 (en) 1990-02-28

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