Many inventors File patents for incandescent light bulbs (that aren't very long-lasting) (1 янв 1841 г. – 1 янв 1874 г.)
Описание:
1841- Frederick de Moleyns1845-John Wellington Star
1852- Jean Eugene Robert Houdin
1858- Samuel Gardiner and Leu Blossom
1872- Alexander Lodygin
1874- Henry Woodward & Mathew Evans
Добавлено на ленту времени:
Дата:
1 янв 1841 г.
1 янв 1874 г.
~ 33 years