(under subclass 592) Process for manufacturing an article especially adapted for (1) consuming fluid fuel to produce a flame or to cut material or (2) consuming fluid or gaseous fuel to combust or otherwise remove undesired material.
(1) Note. A process of making carburetor or fuel injector, per se, is not considered appropriate subject matter for this subclass since the combustion reaction occurs at a latter stage of the engine.
(2) Note. Prior to the establishment of this subclass (890.02) this subject matter was indented under "Gas and Water Device Making" (old 29/157+). Other subclasses under Class 29, subclasses 401.1+ have not been screened for this