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Flashlight

Although a flashlight is a relatively simple device, its invention did not occur until the late 19th century because it depended upon the earlier invention of the electric battery and electric light. Conrad Hubert received a US patent in 1903 , number 737,107 issued August 26, for a flashlight with an on/off switch in the now familiar cylindrical casing containing lamp and batteries. Invention: flashlight in 1902 Function: noun / flash·light, flashlight, flash-light Definition: a small portable battery-powered electric lamp, typically flashlight consists of a small electric light bulb with associated parabolic reflector, powered by electric batteries, and with an electric power switch Patent: 737,107 (US) issued August 26, 1903 Inventor: Conrad Hubert (aka Akiba Horowitz) Criteria: First practical. Modern prototype. Entrepreneur. Birth: April 15, 1856 in Minsk, Russia Death: 1928 Nationality: American (of Russian decent)
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Flashlight (445) - Laser light (48) - Calculator (170) - Radio (226) - Electronic gift (48) - Flashing electronic gift (60) - Electronic fan (67) - Numeral gift (51) - calendar (85) - sound box (17) - theftproof tool (13) -

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Aluminum alloy flashlight
ID: HP-019867
tool box
ID: HP-020106
submersible pocketlight
ID: HP-020105
submersible safety flashlight
ID: HP-020101
Electrician safety flashlight
ID: HP-020098
Industrial safety waterproofing flashlight
ID: HP-020095
submersible pocketlight
ID: HP-020114
submersible safety flashlight
ID: HP-020116
submersible pocketlight
ID: HP-020119
submersible safety flashlight
ID: HP-020121
2D-cell flashlight in Yellow
ID: HP-020122
3D-cell flashlight in Yellow
ID: HP-020123
4AA-Cell headlamp w/ cloth strap
ID: HP-020124
2AA-Cell Swivel head flashlight
ID: HP-020125
Hand lamp2LED
ID: HP-020158
Ordinary hand lamp
ID: HP-020157
Hand lamp
ID: HP-020156
Flashlight
ID: HP-020167
Flashlight
ID: HP-020169
Hand lamp
ID: HP-020188

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