Canadian Subclass Details

Description: 253 / (1) Lubricants (13) Inorganic (25) Alkali, Alkaline Earth, Nitrogen or Hydrogen Containing (26) Nitrates or Nitrites

Hierarchy/Derived subclasses

253 / 1

-> 13

-> 25

-> 26

CIPO search

search just 253/26

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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