[The first invention patents in general anaesthesia].
Dra, Zimmer describes in this work the evolution of general anaesthesia for surgeries, quoting the recorded invention patents, since the 1st one performed in France - an ether anaesthesia - in 1846, 2 years after Wells had used nitrous oxide as gas for a surgery (december 1844).
Zimmer
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D000766:Anesthesia, Dental / Q000266:history*; D005602:France; D013502:General Surgery / Q000266:history*; D049672:History, 19th Century; D010330:Patents as Topic / Q000266:history*
Las primeras patentes de invención en Anestesia General.