Canadian Subclass Details

Description: 72 / (5) Buildings (61) Cast in Situ (64) Walls (65) Formwork (71) Panelled or Shuttered (79) Elements or Accessories (81) Means to Secure Tie Rod to Form (82) With Walers (83) With Wedges

Hierarchy/Derived subclasses

72 / 5

-> 61

-> 64

-> 65

-> 71

-> 79

-> 81

-> 82

-> 83

CIPO search

search just 72/83

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.