USPC Class Details – HistoricIP

Description: 242 winding, tensioning, or guiding / 242 winding, tensioning, or guiding/(370) reeling device (223) fishing rod reel (249) with drive mechanism (273) with level winding (278) drive mechanism reciprocates guide (279) reversely threaded screw

Hierarchy/Derived subclasses

242 / 370	-> 223	-> 249	-> 273	-> 278	-> 279	-> 280
						-> 281

uspto searches

Patent Apps in 242/279

Granted Patents in 242/279

Use the links above or do an advanced search in ppubs for:
(242/279.ccls. or 242/280.ccls. or 242/281.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.