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All Patents in class 362/314
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
  28,695Jun. 12, 1860O. Snow, H.S. SnowLamp
190,069Apr. 24, 1877L.H. OlmstedImprovement in lamps
190,894May 15, 1877L.H. OlmstedImprovement in lamps
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