Illumination – Self powered lamp – Lamp bulb or lamp support axis adjustable or angularly fixed...
Patent
1993-08-24
1994-08-09
Cole, Richard R.
Illumination
Self powered lamp
Lamp bulb or lamp support axis adjustable or angularly fixed...
362200, F21C 1522
Patent
active
053372263
ABSTRACT:
The portable torch includes a light bulb assembly which can be drawn out from the main body to a desired place. The light bulb assembly has a clamping device for clamping the light bulb assembly adjacent to the desired place in order to provide better visibility.
REFERENCES:
patent: 1692394 (1928-11-01), Sundh
patent: 1755472 (1930-04-01), Darungton
patent: 2550423 (1951-09-01), Nelson
patent: 4870543 (1989-09-01), Born et al.
patent: 4881155 (1989-11-01), Gahagan
patent: 4931913 (1990-06-01), Hwang
Shu Cheng-Lan
Wang Jam-Min
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