Number | Date | Country | Kind |
---|---|---|---|
2-253446 | Sep 1990 | JPX | |
2-253447 | Sep 1990 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2337794 | Arenberg | Dec 1943 | |
2582738 | Arenberg | Jan 1952 | |
2635681 | Hiltman et al. | Apr 1953 | |
3604979 | Shimizu | Sep 1971 | |
4139801 | Linares | Feb 1979 | |
4217628 | Windom | Aug 1980 | |
4670819 | Boerema et al. | Jun 1987 | |
5047688 | Alten | Sep 1991 |
Number | Date | Country |
---|---|---|
54-3759 | Jun 1977 | JPX |
59-145638 | Jan 1983 | JPX |
0193945 | Aug 1986 | JPX |
Entry |
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"Report of Fundamental Reserach on How Guide Lamp is Seen", Lighting Society of Japan, 1984. |
"Adjustment of Luminance in Living Room", Meeting of Union of Kansai Branches of Electric and Related Societies, by Sotaro Matsuda, 1966. |
07/892,302, Jun. 1992, Asada et al. |
07/761,057, Sep. 1991, Matsuno et al. |
07/761,054, Sep. 1991, Matsuno et al. |
07/761,056, Sep. 1991, Matsuno et al. |