M0016616: Illustration of diagramatic section of Hewitt's valved stopcock incorporated in his nitrous oxide apparatus
- Date:
- 1958
- Reference:
- WT/D/1/20/1/149/65
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: M0016616: Illustration of diagramatic section of Hewitt's valved stopcock incorporated in his nitrous oxide apparatus. Source: Wellcome Collection.
