F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F28
HEAT EXCHANGE IN GENERAL
F28
HEAT EXCHANGE IN GENERAL
F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F3/00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F3/00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements