Adjustable dental x-ray image media holder
Ambient noise cancellation for voice communication device
Apparatus and method for measuring bulk density of solid particl
Apparatus for acceleration and application of negative ions and
Apparatus for generating x-ray holograms
Apparatus for monitoring X-ray beam alignment
Apparatus for reproducibly positioning an image receptor for int
Apparatus for retaining a radiographic sensor during dental...
Apparatus for taking radiographs used in performing dental subtr
Arrangement for introduction of a film magazine in a film-proces
Arrangement related to a dental sensor