Lighting – Light source – Electric light bulb
Patent
1981-12-23
1983-12-27
Lucas, Susan J.
Lighting
Light source
Electric light bulb
D26 26, D2604
Patent
active
D02719983
REFERENCES:
patent: 1177324 (1916-03-01), Hewitt
patent: 3355612 (1967-11-01), Peek, Jr.
patent: 4173730 (1979-11-01), Young et al.
patent: 4187446 (1980-02-01), Gross et al.
Toshiba Review, Sep.-Oct. 1980, p. 6, FIG. 3.
Official Gazette issued on 10/15/80, Swedish Design Application No. 79-1572.
Official Gazette issued on 2/28/61, U.S. Pat. No. Des. 189,822.
Official Gazette issued on 10/20/70, U.S. Pat. Nos. Des. 218,975, 218,976.
Official Gazette issued on 12/22/70, U.S. Pat. No. Des. 219,516.
Kojima Yoshio
Nanba Masumi
Umehara Nobuhiro
Lucas Susan J.
Tokyo Shibaura Denki Kabushiki Kaisha
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