was patented in

URI: https://gptkb.org/prop/was_patented_in
10 triples
GPTKB property
Random triples
Subject Object
gptkb:Hall-Héroult_process 1886
gptkb:Bell's_electric_sound_transducer 1876
gptkb:Samuel_Morse's_telegraph 1840
gptkb:Fenestron gptkb:1976
gptkb:Mond_process 1890
gptkb:Marconi's_antenna 1900
gptkb:Spring_Drive_mechanism gptkb:1980
gptkb:Marconi's_antenna_system 1900
gptkb:Marconi's_radio_transmitter 1900
gptkb:Marconi's_transmitter 1900