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p. 415.362.7255 |
info@uslhs.org
p. 415.362.7255 |
info@uslhs.org
Lighthouse Patents
269505 Pintsch Gas Burner Patent
281363 Heap Electric Switch Patent
284807 Brown, Felix Fog Siren Patent
290545 Douglass Burner for gas or oil Patent
308870 Boyle Holophotal Reflector Patent
308871 Boyle Lighthouse Illuminator Patent
318849 Arzberger Lighthouse Lamp Patent
320146 Lindberg Rotating Occulting Screen Patent
387939 Wigham Oil Lamp Patent
456598 Sautter Arc Lamp Patent
493495 Funck Post Lantern Patent
534100 Funck Lamp Patent
543730 Heap Light Signal - Patent
553335 Crosby Patent - Electric Arc Lamp
560088 Eells Foundation for Lighthouses Patent
564926 Heap Sound Locating Instrument Patent
579999 Nelms Automatic Beacon Patent
580836 Hunter Electric Searchlight Patent
590062 Heap Topophone Patent
607780 Williams Lighthouse Patent
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