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Wildy's will be closed on Monday 29th May and will re-open on Tuesday 30th May.
Online book orders received during the time we are closed will be processed as soon as possible once we re-open on Tuesday.
As usual Credit Cards will not be charged until the order is processed and ready to despatch.
Any non-UK eBook orders placed after 5pm on the Friday 26th May will not be processed until Tuesday 30th May. UK eBook orders will be processed as normal.
This guide explains how researchers can use patents as a source of historic information. Covering the British patents system from 1617 to the 1977 Patents Act, the guide is intended for anyone researching the history of science and technology or looking for information on the people behind the inventions. Sections include: the historical background of the patent system; patenting procedure; people in the patent system; the patent specification; and searching for patents information.