Who invented the first long lasting incandescent light bulb
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- Who invented the first incandescent light bulb
- Who invented the first practical incandescent light bulb
- Who among the following scientists invented the first long lasting incandescent light bulb
- Who invented the first practiced incandescent light bulb
- Who invented the first successful incandescent light bulb
- Who invented the first efficient incandescent light bulb that was later used in projectors