It's been noted that lightsabers existed before Star Wars in scifi and fantasy novels in various forms like energy beams in shape of knives and actual long blades of energy like in Lucky Starr and Kaldar.So I want to research laser swords in comics from golden age and silver age, I remember a scifi comic cover depicting a woman and a man with jetpacks and short blades of energy, or in Jack Kirby's Mr Miracle an heated sword functioning as laser sword.So post laser swords or what we commonly know as lightsabers before Star Wars.
Jack Kirby's Kamandi's laser rod, more like a laser whip uses by the tigers.
The fire sword of Surtr may count, also by Kirby
Raideen the mecha had a Energy Cutter, and it came in 1975
>>153011490Commendable efforts, anon!
Qwardians from Green Lantern comics may be a contenter for first technical lightsaber or laser sword
>>153011490I think Asimov did it
>>153015261Lucky Starr force-knife yes
Kaldar, World of Antares
This again?
>>153013338That's fire not a laser sword.>>153015190That's just a lightning bolt.