Metal sheet

1950s

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The flame tip of an arc welder and welding rod are melting or braze…

1950s

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An arc welder is braze welding a sheet of metal with a bronze rod with…

1950s

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An arc welder is braze welding a sheet of metal with a bronze rod with…

1950s

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A metal sheet has been made by braze welding two metal plates together…

1950s

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A wire mesh frame is shown and a man’s hand points to it showing the…