Page:A Dissertation on the Construction of Locks (1785).pdf/60

 any ſimilar inſtrument of violation; I may, without preſumption, lay claim to the credit of having brought the art of Lock-making to that perfection, which hath been long ſought, but which, hitherto, hath been ſought in vain. And being determined, that nothing on my part ſhall be wanting, to render the improvement univerſally beneficial; I have no difficulty in pledging myſelf, to thoſe who may be induced to honour me with their commands; that I will no further avail myſelf of my patent, than to ſecure the property of the invention; and that every kind of Lock, conſtructed on the above ſpecification; ſhall be delivered at a price, as low as the expence of manufacturing, with the addition of a very ſmall profit, will admit.