| Patents for G03B 11 - Filters or other obturators specially adapted for photographic purposes (3,423) |
|---|
| 10/24/1978 | US4122470 Hinged multiple exposure matbox attachment for cameras |
| 10/10/1978 | US4119984 Eyepiece |
| 09/05/1978 | CA1037759A1 Camera light attachment with concave transparent reflector |
| 08/15/1978 | US4107716 Demountable photo vignetting device |
| 05/16/1978 | US4089117 Sunshade for telescopic sights |
| 05/09/1978 | US4088405 Apparatus for moving component parts in photographic copying machines or the like |
| 04/25/1978 | US4086604 Selective closure of camera viewfinder and camera incorporating same |
| 03/14/1978 | US4079394 Camera lens masks |
| 12/13/1977 | US4063263 Manually operated shutter attachment |
| 10/11/1977 | US4053910 Multiple exposure optical recording apparatus |
| 08/30/1977 | US4045117 Combined camera lens cap and lens shade |
| 08/23/1977 | US4044370 Photographic camera with density-variable filter |
| 08/09/1977 | US4041308 Automatic control device for correcting filters |
| 07/05/1977 | US4034392 Exposure indicator device in a single lens reflex camera with a TTL exposure meter contained therein |
| 03/15/1977 | US4012754 Photographic camera |
| 01/11/1977 | US4002402 Lens hood for zoom lenses |
| 12/21/1976 | US3998816 7-[5-N-(n-Butoxyethoxy carbonyl and 2-chloroethoxy carbonyl)-amino] cephalosporins C |
| 11/23/1976 | US3994008 Camera accessory mount |
| 10/05/1976 | US3984854 One-piece light cone baffle |
| 09/21/1976 | US3981565 Light-modulating device |
| 08/31/1976 | US3978503 Light shield mechanism for quadrilateral opening |
| 03/09/1976 | US3942864 Lens cap for optical instruments with pivotally mounted lens cover |
| 02/03/1976 | US3936852 Camera with a device for directing supplementary light into the imaging lens |