PL321972A1 - Self-advancing roof supports - Google Patents

Self-advancing roof supports

Info

Publication number
PL321972A1
PL321972A1 PL32197297A PL32197297A PL321972A1 PL 321972 A1 PL321972 A1 PL 321972A1 PL 32197297 A PL32197297 A PL 32197297A PL 32197297 A PL32197297 A PL 32197297A PL 321972 A1 PL321972 A1 PL 321972A1
Authority
PL
Poland
Prior art keywords
self
roof supports
advancing roof
advancing
supports
Prior art date
Application number
PL32197297A
Other versions
PL185653B1 (en
Inventor
Lech Brojewski
Andrzej Okulski
Miroslaw Spiewak
Original Assignee
Maszyn Gorniczych Pioma Sa Fab
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 Maszyn Gorniczych Pioma Sa Fab filed Critical Maszyn Gorniczych Pioma Sa Fab
Priority to PL97321972A priority Critical patent/PL185653B1/en
Publication of PL321972A1 publication Critical patent/PL321972A1/en
Publication of PL185653B1 publication Critical patent/PL185653B1/en

Links

PL97321972A 1997-09-04 1997-09-04 Self-advancing roof supports PL185653B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL97321972A PL185653B1 (en) 1997-09-04 1997-09-04 Self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL97321972A PL185653B1 (en) 1997-09-04 1997-09-04 Self-advancing roof supports

Publications (2)

Publication Number Publication Date
PL321972A1 true PL321972A1 (en) 1999-03-15
PL185653B1 PL185653B1 (en) 2003-06-30

Family

ID=20070579

Family Applications (1)

Application Number Title Priority Date Filing Date
PL97321972A PL185653B1 (en) 1997-09-04 1997-09-04 Self-advancing roof supports

Country Status (1)

Country Link
PL (1) PL185653B1 (en)

Also Published As

Publication number Publication date
PL185653B1 (en) 2003-06-30

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Legal Events

Date Code Title Description
LAPS Decisions on the lapse of the protection rights

Effective date: 20050904