Photoluminescent floor tile

Photoluminescent floor tile

Photoluminescent wall marker and method of making

Radiodiagnosis apparatus with removable intensifying screens

Radiographic cassette adapter

Radiographic film cassette

Radiographic phosphor screen

Radioluminescent light sources

Receptacle for radiographic film material

Reticle plate having a fluorescing pattern

Rotatable mount for film cassette

Rotating cassette holder

Sheet film changer

Sheet squaring device

Tray for x-ray film cassettes

Universal flat-film-changing device

X-ray apparatus comprising an intermittently displaceable film h

X-ray cassette holder

X-ray cassette holder having lever means for positionally adjust

X-ray examination apparatus