ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
F28F0003120000 Elements constructed in the shape of a hollow panel, e.g. with channels 1
F28F0003140000 by separating portions of a pair of joined sheets to form channels, e.g. by inflation (manufacture thereof B23P) 1
F28F0005000000 Elements specially adapted for movement (arrangements for moving the elements, see the appropriate subclass for the apparatus concerned);; 1
F28F0005020000 Rotary drums or rollers 1
F28F0005040000 Hollow impellers, e.g. stirring vane 1
F28F0005060000 Hollow screw conveyors 1
F28F0007000000 Elements not covered by group ; F28F0001000000, F28F0003000000, or F28F0005000000 1
F28F0007020000 Blocks traversed by passages for heat-exchange media 1
F28F0009000000 Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings 1
F28F0009007000 Auxiliary supports for elements 1
F28F0009013000 for tubes or tube-assemblies 1
F28F0009020000 Header boxes; End plates 1
F28F0009040000 Arrangements for sealing elements into header boxes or end plates (joining pipes to walls in general F16L0041000000) 1
F28F0009060000 by dismountable joints 1
F28F0009080000 by wedge-type connections, e.g. taper ferrule 1