PL251629A1 - Hydraulic self-advancing roof supports - Google Patents

Hydraulic self-advancing roof supports

Info

Publication number
PL251629A1
PL251629A1 PL25162985A PL25162985A PL251629A1 PL 251629 A1 PL251629 A1 PL 251629A1 PL 25162985 A PL25162985 A PL 25162985A PL 25162985 A PL25162985 A PL 25162985A PL 251629 A1 PL251629 A1 PL 251629A1
Authority
PL
Poland
Prior art keywords
roof supports
hydraulic self
advancing roof
advancing
hydraulic
Prior art date
Application number
PL25162985A
Other versions
PL146565B1 (en
Inventor
Jan Gwiazda
Original Assignee
Glowny Instytut Gornictwa
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 Glowny Instytut Gornictwa filed Critical Glowny Instytut Gornictwa
Priority to PL25162985A priority Critical patent/PL146565B1/en
Publication of PL251629A1 publication Critical patent/PL251629A1/en
Publication of PL146565B1 publication Critical patent/PL146565B1/en

Links

PL25162985A 1985-01-18 1985-01-18 Hydraulic self-advancing roof supports PL146565B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL25162985A PL146565B1 (en) 1985-01-18 1985-01-18 Hydraulic self-advancing roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25162985A PL146565B1 (en) 1985-01-18 1985-01-18 Hydraulic self-advancing roof supports

Publications (2)

Publication Number Publication Date
PL251629A1 true PL251629A1 (en) 1986-07-29
PL146565B1 PL146565B1 (en) 1989-02-28

Family

ID=20025128

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25162985A PL146565B1 (en) 1985-01-18 1985-01-18 Hydraulic self-advancing roof supports

Country Status (1)

Country Link
PL (1) PL146565B1 (en)

Also Published As

Publication number Publication date
PL146565B1 (en) 1989-02-28

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