Tubular elements of cross-section which is non-circular (F28F1/08, F28F1/10 take precedence)

Full Title

Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F5/00) > Tubular elements of cross-section which is non-circular (F28F1/08, F28F1/10 take precedence)

Child Classifications

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• F28F 1/022
• F28F 1/025
• F28F 1/04 polygonal, e.g. rectangular
• F28F 1/06 crimped or corrugated in cross-section
• F28F 2001/027