(6)The right to make, use, exercise and vend an invention for the purposes of Government under sub-section (1) shall include the right to sell on noncommercial basis, the goods have been made in exercise of that right, and a purchaser of goods so sold, and a person claiming through him, shall have the power to deal with the goods as if the Central Government or the person authorised under sub-section (1) were the patentee of the invention.