Lighting – Light source – Electric light bulb
Patent
1981-12-23
1984-06-26
Lucas, Susan J.
Lighting
Light source
Electric light bulb
D26 26
Patent
active
D02744724
REFERENCES:
patent: 372313 (1887-11-01), Haines
patent: 4237400 (1980-12-01), Wesselink et al.
Lighting Design & Application, 6/80, p. 50, North American Philips Lighting Corp. SL Lamp.
Official Gazette issued on Feb. 28, 1961, U.S. Design Patent No. Des. 189,822.
Official Gazette issued on Oct. 20, 1970, U.S. Design Patent No. Des. 218,975.
Official Gazette issued on Dec. 22, 1970, U.S. Design Patent No. Des. 219,516.
Official Gazette issued on Oct. 15, 1980, Swedish Design Application No. 79-1570.
Official Gazette issued on Oct. 15, 1980, Swedish Design Application No. 79-1571.
Official Gazette issued on Mar. 18, 1981, Swedish Design Application No. 80-1424.
Official Gazette issued on Dec. 1, 1962, Japanese Design Registration No. 211701 registered on Apr. 10, 1962.
Lucas Susan J.
Tokyo Shibaura Denki Kabushiki Kaisha
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