Patents in Class 359/502

Matches 101 - 111 out of 111

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Match	Document	Document Title
101	2473857	Apparatus for insertion in color display devices utilizing polarized light for securing changing saturation of specific hues in fixed zones as vewed by observers
102	2370697	Optical means
103	2369457	Color printing
104	2334418	Signal light construction
105	2332308	Method and apparatus for inspecting plastic molded articles, such as buttons or the like
106	2309626	Color photography
107	2291347	Light filter
108	2236972	Polarizing body
109	2199715	Filter for the photography and projection of colored pictures
110	2169022	Display device
111	1354932	Secret-signaling system

Matches 101 - 111 out of 111

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