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Browse by Category: Main > Optical & Optics
Class Information
Number: 359/807
Name: Optical: systems and elements > Lens > With viewed object support > Flat opaque document or picture
Description: Subject matter wherein the viewed document is flat and viewed by reflected light.










Patents under this class:

Patent Number Title Of Patent Date Issued
7277241 Machine for optical assistance in reading checks Oct. 2, 2007
7133217 Image-taking optical system and image input apparatus Nov. 7, 2006
6940664 Document imaging system Sep. 6, 2005
6808208 Food/drink tab/check holder Oct. 26, 2004
6332570 Flat transparent magnifying envelope Dec. 25, 2001
6116562 Portable magnifier stand Sep. 12, 2000
5610770 Magnifying container for printed matter Mar. 11, 1997
5471347 Magnifying container for printed matter Nov. 28, 1995
4568148 Hand-held collapsible microscope system Feb. 4, 1986
4116533 Stereoscopic viewer Sep. 26, 1978
4037926 Photographic film reading instrument Jul. 26, 1977
4026636 Stereoscopic films May. 31, 1977











 
 
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