GB643220A
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Welded brace anchorage fitting for tubular frame structures
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GB643945A
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Welded brace intersection fitting for tubular structures
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GB640621A
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Welded brace connector for tubular frame structures
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US2477263A
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Welded brace anchorage fitting for tubular frame structures
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US2477260A
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Welded connector for tubular frame structures
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Welded brace intersection fitting for tubular structures
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US1966403A
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Welding union
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CA346537A
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Union welding device
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CA469088A
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Welded brace connectors for tubular frame structures
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CA469089A
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Welded brace anchorage fittings for tubular frame structures
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CA469087A
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Welded brace intersection fittings for tubular structures
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