Apparatus for indicating how dirty an air filter is in a vacuum-
Apparatus for measuring particle morphology and method thereof
Apparatus for performing at least two measurements of characteri
Apparatus for performing twin entangled co-incident photon...
Apparatus for retouching, in situ, components such as the rotor
Apparatus for simultaneously measuring the thickness of, and the
Apparatus for use in grading hides, skins, pelts and the like
Arc/spark optical emission spectroscopy correlated with...
Arrangement for the optical detection of light radiation...