Show PATENTS ITEMS A pate patentee antee may grant an exclusive right to another person n to manufacture or sell his beut deut device within i in the whole or any part of the united states according to lo the patent laws of S switzerland witz erland work on a device must begin in that country within three yea years from the date ot 0 the patent A spanish Sli anish patent is subjected to an annual tax the amount being assessed by government officials according to their ideas of the value of af the device previous us description in a printed publication li of the machine or device or a previous patent issued for it will prevent any application being granted A canadian patent covers the provinces of ontario quebec new brunswick nova scotia prince edwards island manitoba and british columbia |