Pages of patent, designs and trade mark act. 1883
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Pages of patent, designs and trade mark act. 1883. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Pages of patent, designs and trade mark act. 1883. Wellcome Collection. Source: Wellcome Collection.