US PATENT SUBCLASS 110 / 121
.~ Combined stack and smokebox

Current as of: June, 1999
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110 /   HD   FURNACES

119  DF  SPARK ARRESTERS {3}
121.~ Combined stack and smokebox

DEFINITION

Classification: 110/121

(under subclass 119) Devices in which the arrester is contained in both the stack and smokebox.

SEE OR SEARCH CLASS

55, Gas Separation,

447+, for fixed gas whirler or rotator deflection separators.