PL198371A1
(en )
1978-01-16
THE METHOD OF CONFIGURATION OF GEOLOGICAL FORMATIONS
IT1143566B
(en )
1986-10-22
PROCEDURE AND APPARATUS FOR THE EXPLOITATION OF UNDERGROUND GEOTHERMAL SOURCES
DK274777A
(en )
1977-12-22
TUNNEL LINING
ATA185377A
(en )
1981-02-15
AUTOMATIC LOCKER
SE7712661L
(en )
1978-05-11
CORROSION INHIBITORS AND / OR DEPOSIT CONTROLS
SE7704173L
(en )
1977-10-20
METAL DEPOSIT
PL98375B1
(en )
1978-04-29
TARGET METHOD OF EXPLOITATION OF THE DEPOSIT OR CAPACITY IN OPEN MINE
NZ183763A
(en )
1980-03-05
Anti-personnel mine
DK42176A
(en )
1977-08-03
COAL OR FREEZER
DK147714C
(en )
1985-08-26
REVERSIBLE EARTH BATTLE
NL7903809A
(en )
1979-12-04
GRAVITY GRADIOMETER.
DK59777A
(en )
1977-08-14
COLD ACCUMULATOR
DK516980A
(en )
1982-06-04
Freezer or refrigerator
PL200684A1
(en )
1978-05-08
COAL PROCESSING METHOD
NL7810079A
(en )
1979-04-10
ORGANIZATION AND METHOD FOR DETERMINING THE PROPERTIES OF UNDERGROUND FORMATIONS.
NL182158C
(en )
1988-01-18
METHOD FOR ATTACHING A REFRIGERANT TO THE ARMOR OF A MAIN OVEN AND A REFRIGERANT
GB1558299A
(en )
1979-12-19
Methods for delining furnaces or the like
AT349519B
(en )
1979-04-10
METALLIC TUNNEL CONSTRUCTION
JPS5356809A
(en )
1978-05-23
Land slide protection wall construction method
JPS5286240A
(en )
1977-07-18
Tunnel construction method
JPS5325017A
(en )
1978-03-08
Travelling expansion house
NL7702124A
(en )
1977-09-05
METHOD AND STRUCTURE FOR INDIRECT EXTRUCTION.
PL199832A1
(en )
1979-02-12
METHOD OF PRE-ENHANCEMENT OF THE SULFUR DEPOSIT DURING OPERATION EXPLOITATION METHOD
JPS5356808A
(en )
1978-05-23
Land slide protection wall construction method
JPS5291466A
(en )
1977-08-01
Large caliber sand sampler