recording method

URI: https://gptkb.org/prop/recording_method
4 triples
GPTKB property
Random triples
Subject Object
gptkb:Blue_Amberol_cylinders electrical (later years)
gptkb:Compact_Disc_Recordable laser burning
gptkb:Blue_Amberol_cylinders acoustic
gptkb:Edison_Diamond_Disc acoustic (until 1927), then electrical