Matches 151 - 200 out of 228 < 1 2 3 4 5 >
Match Document Document Title
3393297 Combined heating and insulating means for heat-treating objects  
3388980 Method of making glass polishing composition  
3387761 Internal alignment clamp  
3372467 Method and apparatus for plasma welding and magnetically corrugating metal tubing  
3372852 Tape  
3354286 Exhaust system conduit  
3350537 Internal stub tube welding apparatus  
3350534 Electrode holder  
3349214 Arrangement for guiding the toolforming electrode of a machine operating through electric erosion  
3349213 Multi-arc seam welding devices  
3346712 Automatic temperature control  
3341686 Electrical welding arc gap control method and means  
3324275 Method of and apparatus for centering axially aligned tubes for butt welding  
3292254 Inflatable welding purging device and method  
3288980 Heat stress relieving apparatus  
3284883 Line up clamp  
3283115 Strong-back clamping system for holding pipe joints during welding  
3277567 Method for forming girth welds between large tubular metal sections  
3275786 High speed butt welding method and apparatus  
3268708 Apparatus for mounting a torch on a welding machine  
3268706 Internal cone arc torch  
3263054 Method for producing welded products and a device for carrying out the method  
3263064 Apparatus for determining the repetition frequency of pulse signals  
3261960 Apparatus for regulating welding current  
3259964 Pipe clamp  
3256418 Wire straightener and feeder  
3246712 Anti-drift air cushion load supporting device  
3243566 Electric arc welding circuit  
3242309 High-speed multi-arc seam welding and apparatus  
3240913 Apparatus for controlling degree of penetration in welding, especially of tubing  
3233074 Machine for forming tubes with longitudinally extending fins  
3226522 Welding of electric cables  
3219789 Welding apparatus  
3207408 Apparatus for treating the interior of a tubular element  
3194466 Gas backing blocks for welded joints  
3188446 Method and apparatus for assembly of nuclear control rods and fuel tubes  
3182171 Tube welding machine  
3169182 Weld box  
3168727 Superconductive storage circuit with persistent circulating current  
3165616 Seam sealing apparatus  
3158727 Welding using a plasma arc  
3116865 Apparatus for drawing metal tubing  
3109085 Apparatus for welding  
3098147 Arc welder back-up wheel  
3085147 Method and machine for cold manufacturing of pipes  
3085146 Machine for manufacturing pipes in situ  
3084246 Process and apparatus for welding  
3084243 Internal tube welding torch  
3068343 Arc welding device for rod or tube material  
3065328 Sheet forming and seaming machine  
Matches 151 - 200 out of 228 < 1 2 3 4 5 >