Heart rate monitoring apparatus; Lasers for medical purposes; Radiological apparatus for diagnostic and medical purposes, namely, a helium-3 polarizer used for magnetic resonance imaging (MRI) of the lungs; Radiological apparatus for medical purposes; Radiotherapy apparatus; Surgical apparatus and instruments for medical, dental or veterinary use; Tomographs for medical purposes; X-ray apparatus for medical purposes; X-ray photographs for medical purposes; X-ray tubes for medical purposes