Improvements in Advertising Apparatus.
Номер патента: GB189908384A
Опубликовано: 07-04-1900
Автор(ы): Charles Frederick Floyd
Принадлежит: Individual
Опубликовано: 07-04-1900
Автор(ы): Charles Frederick Floyd
Принадлежит: Individual
Реферат: 8384. Floyd, C. F. April 21. Drawings to Specification. Magic-lanterns. - A lamp or lantern bearing advertisements, which may be thrown by optical means on a screen, is carried on, and may be rotated by the movement of, a vehicle, a pawl on the wheel hub of the vehicle actuating at each revolution of the wheel a toothed wheel which conveys the movement to the lantern through bevel gearing. The lantern may be also actuated by a spring or other motor, and a hand device may be used for throwing it out of gear.
Method and plant for air quality improvement in restricted space
Номер патента: RU2338961C2. Автор: Лауфей ЛИН. Владелец: Лауфей ЛИН. Дата публикации: 2008-11-20.