JPS5373201A
(en )
1978-06-29
Method of decreasing sulfure content of coal
JPS5258705A
(en )
1977-05-14
Antiioxidizing stabilizating oil and making method thereof
JPS5369201A
(en )
1978-06-20
Method of liquefying coal
GB1542541A
(en )
1979-03-21
Method and apparatus for sinking boreholes
JPS52123358A
(en )
1977-10-17
Frictional welding method
JPS5388801A
(en )
1978-08-04
Method of decreasing sulfure content of coal
JPS5371105A
(en )
1978-06-24
Method of liquefying coal
CS185067B1
(en )
1978-09-15
Method of extraction of the thick horizontal and medium dipping coal seam
JPS52111060A
(en )
1977-09-17
Oil and water separating method
JPS52117192A
(en )
1977-10-01
Method of discriminating properties of coal and cokes
JPS5315993A
(en )
1978-02-14
Method of sealing up tray
GB1547167A
(en )
1979-06-06
Storage method and storage trolleys
JPS5310172A
(en )
1978-01-30
Oil and water separating method
JPS5485207A
(en )
1979-07-06
Method of combining coal and petroleum
JPS5326324A
(en )
1978-03-11
Deodrizing method and deodrant
JPS537915A
(en )
1978-01-24
Void sealing method
JPS5285048A
(en )
1977-07-15
Frictional welding method
JPS5230011A
(en )
1977-03-07
Wall surface assembly and its assembly method
JPS52101768A
(en )
1977-08-26
Oil recovery method and system
SU674780A1
(en )
1979-07-25
Method of obtaining recoverable absorber of carbon dioxide
JPS52111238A
(en )
1977-09-17
Method of changeeover construction of elevated track
JPS52105487A
(en )
1977-09-03
Method of oil recovery and oil recovery boat
JPS52116392A
(en )
1977-09-29
Container sealing method and equipment
JPS52114465A
(en )
1977-09-26
Side seaming construction and seaming method
JPS52142644A
(en )
1977-11-28
Frictional welding method