YU155475A
(en )
1982-05-31
Process for eliminating water from brown coal
IL46371A0
(en )
1975-03-13
Method and apparatus for drawing sandfree water from bored wells
MY8100131A
(en )
1981-12-31
Method for expanding organic substances
HU171651B
(en )
1978-02-28
Self-propelled carriage particularly for mining mineral matters
JPS5391463A
(en )
1978-08-11
Slurry processing method
JPS54148102A
(en )
1979-11-20
Mineral substance mining method
IL45907A0
(en )
1974-12-31
Method and apparatus for treating waste water
CA955345A
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1974-09-24
Method for removing phosphate from waste water
BG22251A1
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1979-12-12
Method and installation for non-ferros elektrolysis
HK72978A
(en )
1978-12-15
Method and apparatus for removing waste
ZA752731B
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1976-04-28
Apparatus for pulling drill pipe
CS178652B1
(en )
1977-10-31
Method for removing arsenic compounds from underground and mineral water
CA1021709A
(en )
1977-11-29
Apparatus and process for extracting oil and bitumen
ZA767192B
(en )
1977-10-26
Mineral mining apparatus
JPS5439957A
(en )
1979-03-28
Method of treating waste water
JPS57197087A
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1982-12-03
Method of treating waste water
GB2018861B
(en )
1982-08-18
Method and apparatus for mining minerals
CS179534B1
(en )
1977-11-30
Equipment for removing arsenic compounds from ground and mineral water
JPS52156783A
(en )
1977-12-27
Process for treating clay mineral
JPS52102323A
(en )
1977-08-27
Concrete pipe inside grinding apparatus
JPS5229381A
(en )
1977-03-05
Method for sealing chemicals
JPS5265922A
(en )
1977-05-31
Apparatus for advancing pipe into ground
JPS5255257A
(en )
1977-05-06
Processing method for waste water contained oil
AU7930475A
(en )
1976-09-23
Improved concrete drain pipe
JPS53124672A
(en )
1978-10-31
Manufacturing apparatus for mineral water