Description: 240 / (143) Light Modifying, Directing Or Source Protecting (178) Housing or Casing (185) Adjustable (187) Counter Weighted

Hierarchy/Derived subclasses

240 / 143

-> 178

-> 185

-> 187

CIPO search

search just 240/187

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.

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