Improvements in devices for filling and capping capsules / [Frank Burgett Grove].

Improvements in and relating to dental chairs / [Frank Ritter].

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We'll be unable to retrieve items from our closed stores over the weekend due to essential maintenance work. Please place any requests by 10:00 on Friday 6 February if you need items for Monday. The library will remain open as usual. Thank you for your understanding.

We're running paid user research studies to improve Wellcome Collection online

Junge, Charles

Works from the collections

Improvements in devices for filling and capping capsules / [Frank Burgett Grove].

Improvements in and relating to dental chairs / [Frank Ritter].