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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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