first demonstrated

URI: https://gptkb.org/prop/first_demonstrated
8 triples
GPTKB property
Random triples
Subject Object
gptkb:electronic_television gptkb:1927
gptkb:Nd:_YAG gptkb:1964
gptkb:Bessler's_wheel 1712
gptkb:Bell's_sound_recording_device 1886
gptkb:Kinetophonograph gptkb:1896
gptkb:Kinetograph 1893
gptkb:Kroll_process 1940s
gptkb:Edison's_phonograph 1877