Lighting – Light source – Electric light bulb
Patent
2000-02-25
2000-12-26
Douglas, Alan P.
Lighting
Light source
Electric light bulb
D26 96, D26102, 2604
Patent
active
D04356748
REFERENCES:
patent: D87569 (1932-08-01), Goldman
patent: D148965 (1948-03-01), Thienhaus
patent: D185199 (1959-05-01), Goldberg
patent: D413686 (1999-09-01), Burks
patent: 1594138 (1926-07-01), Wischhusen et al.
patent: 1677998 (1928-07-01), Bliss
patent: 1783277 (1930-12-01), Block
patent: 1831443 (1931-11-01), Goldman
patent: 1885279 (1932-11-01), Monk
patent: 2101971 (1937-12-01), Wolf
Brooks Linda
Douglas Alan P.
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