PL53892Y1 - Roof support made of i-shapes for crossing of mine workings - Google Patents

Roof support made of i-shapes for crossing of mine workings

Info

Publication number
PL53892Y1
PL53892Y1 PL9561892U PL9561892U PL53892Y1 PL 53892 Y1 PL53892 Y1 PL 53892Y1 PL 9561892 U PL9561892 U PL 9561892U PL 9561892 U PL9561892 U PL 9561892U PL 53892 Y1 PL53892 Y1 PL 53892Y1
Authority
PL
Poland
Prior art keywords
crossing
shapes
roof support
support made
mine workings
Prior art date
Application number
PL9561892U
Inventor
Andrzej Kowal
Stanislaw Jagosz
Wojciech Dygdala
Miroslaw Major
Jerzy Krywult
Marian Drobniak
Original Assignee
Os Bad Rozwojowy Budownictwa
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 Os Bad Rozwojowy Budownictwa filed Critical Os Bad Rozwojowy Budownictwa
Priority to PL9561892U priority Critical patent/PL53892Y1/en
Publication of PL53892Y1 publication Critical patent/PL53892Y1/en

Links

PL9561892U 1992-07-14 1992-07-14 Roof support made of i-shapes for crossing of mine workings PL53892Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL9561892U PL53892Y1 (en) 1992-07-14 1992-07-14 Roof support made of i-shapes for crossing of mine workings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL9561892U PL53892Y1 (en) 1992-07-14 1992-07-14 Roof support made of i-shapes for crossing of mine workings

Publications (1)

Publication Number Publication Date
PL53892Y1 true PL53892Y1 (en) 1996-02-29

Family

ID=19937046

Family Applications (1)

Application Number Title Priority Date Filing Date
PL9561892U PL53892Y1 (en) 1992-07-14 1992-07-14 Roof support made of i-shapes for crossing of mine workings

Country Status (1)

Country Link
PL (1) PL53892Y1 (en)

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