New Device Permits Patient To Administer Gas (Jul, 1938)

Sticking with the theme of nitrous oxide, we have this adorable piece of head-gear.

New Device Permits Patient To Administer Gas
A NEW device makes it possible for a patient to administer gas rather than having it done by the dentist. The patient takes the gas by working a small bulb held in the hand. Thus it is possible to take only as much as necessary for producing a state of analgesia.

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