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2024
|
Invention
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Device and method for preheating a workpiece to be welded.
The present invention relates to a de... |
|
|
Invention
|
Device and method for preheating a workpiece to be welded. The present invention relates to a dev... |
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2021
|
G/S
|
Machine tools, power-operated tools; Welding machines and apparatus and parts thereof; Material h... |
|
|
G/S
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Power-operated tools, namely, grinders, saws, drills, chisels and air hammers; electric and gas w... |
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2015
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G/S
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Machines and machine tools for material handling and
fabrication; machinery for agricultural, ea... |
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2012
|
G/S
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Machines and machine tools; motors and engines (except for
land vehicles); machine coupling and ... |
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2010
|
Invention
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Method for manufacturing a door frame, welding arrangement and structure of a door frame. Manufac... |
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|
Invention
|
Method for manufacturing a door frame, welding arrangement and structure of a door frame. ... |
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1990
|
Invention
|
Alignment apparatus for pipe welding. The invention relates to an alignment apparatus for the rel... |
