GB2090545B
(en )
1984-08-08
Method and apparatus for zone freezing
GB2133874B
(en )
1986-09-03
Apparatus for observing and aligning objects
GB2173132B
(en )
1988-06-02
Boring process and apparatus
DE3372391D1
(en )
1987-08-13
Method and apparatus for drilling
DE3262144D1
(en )
1985-03-14
Method and apparatus for the determination of urea
GB2156877B
(en )
1988-02-10
Method and apparatus for the subsequent underground sealing of dumps
DE3362403D1
(en )
1986-04-10
Method and apparatus for earth drilling
PL238570A1
(en )
1983-06-06
Tracer for underground determination and method of using the same
GB2147642B
(en )
1986-10-15
Drilling apparatus and methods
GB2091780B
(en )
1984-08-01
Drilling methods and equipment
GB2125468B
(en )
1985-11-06
Method and apparatus for boring and lining holes underground
GB2124278B
(en )
1985-11-06
Earth drilling apparatus and method
GB2041039B
(en )
1983-03-23
Method and apparatus for drilling and mining
GB2168454B
(en )
1988-06-29
Shock-absorbing method and apparatus
JPS57133801A
(en )
1982-08-18
Method of packing work and bag for packing
JPS56125597A
(en )
1981-10-01
Method of and apparatus for protecting working face
PL124419B2
(en )
1983-01-31
Apparatus for placing gaskets into shanks and unions of miner's drills
JPS57161289A
(en )
1982-10-04
Ground drilling method and apparatus
ZA835245B
(en )
1984-08-29
Earth drilling apparatus and method
JPS57104789A
(en )
1982-06-29
Drilling method and apparatus
GB2152558B
(en )
1986-12-17
Mining method and apparatus
ZM8385A1
(en )
1986-03-27
Gasification methods and apparatus
JPS57100297A
(en )
1982-06-22
Apparatus for sending and conveying drilled soil under pressure for shield work
GB2136851B
(en )
1986-05-29
Apparatus and methods of ground drilling
JPS56139390A
(en )
1981-10-30
Boring method and apparatus