Cartridge for multi-disk pack

Cartridge for recording medium

Cartridge having a passive shutter opening mechanism

Cartridge having a recording mode switching member

Cartridge having a write protector integrally formed with the ca

Cartridge having casing with shutter movable to receive discs th

Cartridge shutter mechanism

Cartridge with improved access door closing means

Case for a disc-shaped recording medium

Case for a disc-shaped recording medium

Case for a disc-shaped recording medium

Case for a rotary recording medium

Case for accommodating disc cartridge

Casing assembly for a disc cartridge

Casing for cassette magnetic tape

Cassette apparatus and method for retaining selected segments of

Cassette base with triangular strengthening braces

Cassette case board and release part for recording medium casset

Cassette condition indicating device

Cassette condition indicating device having plug with multiple s