GB2060043A
(en )
1981-04-29
Mine roof support assembly
PL88210B1
(enExample )
1976-08-31
PL108210B1
(pl )
1980-03-31
Obudowa kroczaca do zastosowania w grubych pokladamobile lining for use in thick coal beds ch wegla
HU182613B
(en )
1984-02-28
Shield supporting device of mine
US3225547A
(en )
1965-12-28
Travelling hydraulic development frame for mining operations
US4186969A
(en )
1980-02-05
Apparatus for controlling the position of a mining machine
US1710449A
(en )
1929-04-23
Metal awning
CS203073B2
(en )
1981-02-27
Facility for adjusting the cutting level of the plane or similar instrument of the hoisting engine
US3848420A
(en )
1974-11-19
Mine roof supports
US3448584A
(en )
1969-06-10
Hydraulic casing units for mine workings
PL90458B1
(enExample )
1977-01-31
PL80728B1
(enExample )
1975-08-30
PL114247B1
(en )
1981-01-31
Walking roof support trestle
PL78410B1
(en )
1975-06-30
Stepping shield supporting device[hu176912b]
HU176298B
(en )
1981-01-28
Device whitch suitable for sustaining and after tightening of longwall cutter and transporter used at sloped longwall
US4069676A
(en )
1978-01-24
Mine packing equipment
PL93301B1
(enExample )
1977-05-30
PL48342B1
(enExample )
1964-06-15
US4293248A
(en )
1981-10-06
Walking roof support
SU1740682A1
(ru )
1992-06-15
Секци посадочной крепи
US4310268A
(en )
1982-01-12
Mining equipment
SU693036A1
(ru )
1979-10-25
Устройство дл подъема лесоматериала
SU1645535A1
(ru )
1991-04-30
Крепь сопр жени
RU1838608C
(ru )
1993-08-30
Устройство дл передвижки конвейера струговой установки
PL87835B1
(enExample )
1976-07-31