definiens: means the gross selling price of the Licensed Product in the form in which it is sold, whether or not assembled ( and without excluding therefrom any components or subas­semblies thereof, whatever their origin and whether or not patent impacted ), less the following items, but only insofar as they actually pertain to the sale of such Licensed Product by VESTAR or any of its affiliates, and are included in such gross selling price, to the extent such items ( except item ( i ) and ( vi ) ) are separately billed, I ( i ) usual trade discounts actually allowed ( other than cash discounts . advertising allowances . or fees or commissions to any employees ) I ( ii ) packing costs, ( iii ) import . export . ex, ise and sales taxes . and customs dutiesl ( iv ) costs of insurance and transportation from the place of manufacture to the customer 's premises or po ~ nt of installa­tion, 269 -2-• • • ( v ) costs of installation at the place of use ; and ( vi ) credit for returns . allowances or trades