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
F28F9/00
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
F28F9/00
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
F28F9/02
Header boxes; End plates
F28F9/02
Header boxes; End plates
F28F9/0202
Header boxes having their inner space divided by partitions
F28F9/0202
Header boxes having their inner space divided by partitions
F28F9/0204
for elongated header box, e.g. with transversal and longitudinal partitions
F28F9/0204
for elongated header box, e.g. with transversal and longitudinal partitions