[Birth of two industries in France; x-ray tubes and vacuum and low pressure pumps; 1912 to 1920].
D005260:Female; D005471:Fluoroscopy; D005602:France; D006801:Humans; D007221:Industry; D036801:Parturition; D011312:Pressure; D011859:Radiography / Q000295:instrumentation*; D014618:Vacuum; D014965:X-Rays
ROENTGENOGRAPHY/apparatus and instruments
Naissance en France de deux industries; tubes à rayons x et pompes à vide à basse pression; 1912 à 1920.