Charles R Jerge, Bruce Frankel, Karl Zoll: Apparatus for organizing, sterilizing, and maintaining medical/dental instruments. Hu Friedy Manufacturing Co, Laff Whitesel Conte & Saret, September 17, 1985: US04541992 (80 worldwide citation)

A sterilizable, stackable medical/dental instrument casette is formed of sterilization heat resistant plastic. A cover of the casette is closable, openable and separable from a tray of the casette. The tray is stackable on the cover, or other identical casette covers. Flexible, movable rails define ...

Roy Riihimaki, Richard D Amico, Karl Zoll: Instrument cassette. Hu Friedy Manufacturing Co, Laff Whitesel Conte & Saret, August 8, 1989: US04854475 (50 worldwide citation)

A cassette for sterilization and storage of instruments, incorporating improved instrument-locating and retaining means and improved hinge and latch mechanisms. The cassette is fabricated of metallic materials having superior heat resistance, and is designed to be stored in stacked relationship with ...