Description
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water or air traps, air venting F16)
DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water or air traps, air venting F16)
Subclass | Title |
---|---|
1/00 | Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00) |
1/02 | Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00) Tubular elements of cross-section which is non-circular (F28F 1/08, F28F 1/1 take precedence) |
1/04 | Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00) Tubular elements of cross-section which is non-circular (F28F 1/08, F28F 1/1 take precedence) polygonal, e.g. rectangular |
1/06 | Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00) Tubular elements of cross-section which is non-circular (F28F 1/08, F28F 1/1 take precedence) crimped or corrugated in cross-section |
1/08 | Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F 5/00) Tubular elements crimped or corrugated in longitudinal section |