definiens: shall mean the gross invoice or co ntract price of Licensed Product sold by Licensee or an Af filiate of Licensee or any distributor or reseller on behalf o f the Licensee,, less the following items but only insof ar as they actually pertain to the sale of such Licensed Produ cts by Licensee or any of its Affiliates and are included in such gross invoice or contract price and to the extent s uch items ( except items ( a ) and ( b ) ) are separately billed : ( a ) normal or customary trade discounts, if any, actually allowed or paid ( other than cas discounts, advertising allowances, fees, or commissions to any employee ) ; ( b ) credits fro returns, allowances, or trades ; ( c ) import, export, excise and sales tax, plus cust oms duties ; ( d ) cost of insurance and transportaiton from the p lace of manufacture to the customer 's premises or point of installation ; and ( e ) packing costs