|
US2961529A
|
|
Power-operated clamping mechanism
|
|
GB885070A
|
|
Improvements in or relating to apparatus for flash-butt welding
|
|
US2972672A
|
|
Electric resistance welding machines
|
|
GB862599A
|
|
Improvements in or relating to flash-butt welding machines having power-operated clamping mechanism
|
|
US2894114A
|
|
Flash-butt resistance welding machines
|
|
GB841909A
|
|
Improvements in or relating to electric flash-butt welding machines
|
|
GB832282A
|
|
Improvements in or relating to apparatus for manufacturing chains
|
|
GB832271A
|
|
Improvements in or relating to electric resistance welding machines
|
|
GB824571A
|
|
Improvements in or relating to flash-butt resistance welding machines
|
|
US2716177A
|
|
Apparatus for electric welding
|
|
US2685628A
|
|
Electric resistance welding machine
|
|
GB743574A
|
|
Improvements in or relating to apparatus for electric flash butt welding
|
|
GB712498A
|
|
Devices for clamping workpieces of web and flange section
|
|
GB706337A
|
|
Improvements in electric resistance welding machines
|
|
GB669783A
|
|
Improvements in or relating to work clamping means for resistance welding machines
|
|
GB654601A
|
|
Improvements in electric resistance welding machines
|
|
GB648939A
|
|
Improvements in electric welding
|
|
GB650125A
|
|
Improvements in work-clamps of electric resistance flash-butt welding and heating machines
|
|
GB645025A
|
|
Improvements in apparatus for converting multiphase alternating current into single-phase alternating current
|
|
US2603067A
|
|
Riveter or the like having a pressure multiplying device
|
