.~ Means for supplying respiratory gas under positive pressure {17}
205.24
.~.~ Valve, or valve control, structure
DEFINITION
Classification: 128/205.24
Valve, or valve control, structure:
(under subclass 204.18) Subject matter including valve, or valve control, structure.
(1) Note. A patent is placed as an original in this subclass only if it claims structural details of a valve, (i.e., a mere nominal recitation of a valve is insufficient to place patent here).