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Class Information
Number: 359/641
Name: Optical: systems and elements > Collimating of light beam
Description: Subject matter wherein a bundle of light rays emanating from a single point are made to be parallel to one another, as opposed to converging or diverging rays.


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
RE28847 Inside helmet sight display apparatus Jun. 8, 1976

1 2 3 4 5 6 7


 
 
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