GB2216926B
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1992-08-12
Drilling method and apparatus
GB2197895B
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1990-06-06
Well penetration apparatus and method
HU896364D0
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1991-07-29
Method of and apparatus
ZA891928B
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1989-11-29
Protection and security apparatus and method
EP0219301A3
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1988-12-21
Improved microfinishing apparatus and method
ZA889554B
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1989-09-27
Grinding method and grinding apparatus
EP0358433A3
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1990-07-18
Construction apparatus and construction method
GB2217757B
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1992-03-25
Method and apparatus for setting an inflatable packer
GB8830454D0
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1989-03-01
Sanding method and apparatus
EP0244205A3
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1988-01-13
Gas liquefaction method and apparatus
EP0232884A3
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1987-10-07
Diafiltration apparatus and method
GB8924083D0
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1989-12-13
Rock drilling apparatus and method
EP0266984A3
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1988-09-14
Gas liquefaction method and apparatus
EP0257903A3
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1989-02-22
Apparatus and method for fragmenting slag
EG17475A
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1990-12-30
A method in the installation of piles and apparatus for carrying the method
ZA869745B
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1988-08-31
Hydrodewaxing method and apparatus
HUT49253A
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1989-08-28
Method and device for exact
PL271031A1
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1989-09-18
Method of and apparatus for protecting roofs in driven gallery-type workings
EP0301271A3
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1989-12-20
Method and device for grinding profiled work pieces
DE3665677D1
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1989-10-26
Method and apparatus for spray-impregnating materials
GB8910253D0
(en )
1989-06-21
Decontamination method and apparatus
GB2193987B
(en )
1989-12-20
Mineral cutting method and apparatus
PL257965A1
(en )
1987-11-02
Method of handling materials in mine workings and apparatus therefor
ZA899380B
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1990-08-29
Method of cutting and cutting apparatus
PL288321A1
(en )
1992-06-26
Method of and apparatus for monitoring hazards in mine workings