Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F28
HEAT EXCHANGE IN GENERAL
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F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
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9/00
Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
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F28F9/02
Header boxes; End plates
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F28F2009/0285
Other particular headers or end plates
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F28F2009/029
with increasing or decreasing cross-section, e.g. having conical shape
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