Classification opinions
… fit over the stud shank; (iii) a steel cam with two semi-helicoidal paths terminating in locking slots; (iv) a … the complete device by fitting into the slots; used, inter alia, for fixing sensitive instruments, etc., to the walls … contained. Application of Note 1 (g) to Section XVI. See also Opinions 4016.99/1 and 8487.90/5. Adoption : 1966 …