of the deflector or flattened to fit to a corresponding opening in the tube, F, that constitute a picture absent; and, seen by transmitted are balanced and so arranged that when either mouth of the light, little else than its technical qualities can be judged of. that it may turn with the tube.… … tion in which the caris moving, the current will close one of For this device letters patent were issued through the the annoyances that the poor photographer has quietly to the vanes and thus force the other out into the guard. They Scientific American Patent Agency May 22, 1866, to John endure…
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