Lubricating means for internal-combustion engines, the device in question being designed and adapted for use only with such an engine and being dependent for its action upon peculiarities of operation present only in internal-combustion engines.
(1) Note. Lubricating means capable of use with engines generally, irrespective of the fluid by which they are operated, and capable of use with air, steam, internal-combustion, or other engines are classified in Class 184, Lubrication appropriate subclasses, notwithstanding they may be designed with reference to use with internal-combustion engines.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
153+, for lubricating means for an expansible chamber device.
210, Liquid Purification or Separation,
153+, for a structural installation of a separator, especially subclasses 167 and 171 wherein an internal-combustion engine may be broadly recited as the source of the material to be treated.
