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GB562197A
|
|
Improvements relating to automatic arc welding
|
|
GB549734A
|
|
Asbestos-cement and other felted fibrous sheet material
|
|
GB549497A
|
|
Improvements relating to the centrifugal moulding of concrete pipes and the like
|
|
GB537559A
|
|
Improvements in and relating to backing devices for use in electric welding operations
|
|
GB540324A
|
|
Improvements relating to the coating and manufacture of pipes and similar hollow bodies from cementitious or similar plastic materials
|
|
GB530863A
|
|
Improvements relating to screens for use in connection with hand-welding operations
|
|
GB529361A
|
|
Improvements in machines for crushing or pulverising stone and other materials
|
|
GB505516A
|
|
Improved machine for trimming and/or bevelling the edges of metal plates
|
|
GB498013A
|
|
Improvements in or relating to apparatus for the centrifugal moulding of concrete pipes and the like
|
|
GB494735A
|
|
Improvements in or relating to the jointing of pipes
|
|
GB451582A
|
|
Improvements in and relating to the art of electric arc welding
|
|
GB426848A
|
|
Improvements relating to the manufacture of pipes and the like from sheet metal
|
|
GB409955A
|
|
Improvements in and relating to the art of electric arc welding
|
|
GB408422A
|
|
Improved machine for forming faucets and other shapes on metal pipes and the like
|
|
GB399846A
|
|
Improvements in and relating to automatic control devices for electric arc welding apparatus
|
|
GB345716A
|
|
Improvements in and relating to electric welding apparatus
|
|
GB320538A
|
|
Improvements in and relating to the manufacture of structures comprising metal bars or like members welded together at their ends or intersections
|
|
GB312027A
|
|
Improvements relating to the manufacture of sheet metal pipes and the like
|
|
GB311946A
|
|
Improvements relating to the manufacture of sheet metal pipes and the like
|
|
GB316360A
|
|
Improvements in and relating to electric welding machines
|
