A
HUMAN NECESSITIES
A
HUMAN NECESSITIES
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61B
DIAGNOSIS; SURGERY; IDENTIFICATION
A61B
DIAGNOSIS; SURGERY; IDENTIFICATION
A61B1/00
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
A61B1/00
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
A61B1/00002
Operational features of endoscopes
A61B1/00002
Operational features of endoscopes
A61B1/00057
provided with means for testing or calibration
A61B1/00057
provided with means for testing or calibration