Photographic information indication device
Patent 4090207 Issued on May 16, 1978. Estimated Expiration Date: 
May 16, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 16, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3212418 3713369 3868704 3872483 3876876 3889278 3899789 3909137 3928858 Exposure control devices for photographic cameras InventorsAssigneeApplicationNo. 618111 filed on 09/30/1975US Classes:396/239, Having indicator396/296Having display in viewfinderExaminersPrimary: Griffin, Ronald W.Assistant: Perkey, William B. Attorney, Agent or FirmInternational ClassesG03B 007/08G03B 017/20 Foreign Application Priority Data1974-10-04 JAAbstractIn a camera which permits both shutter-preference and aperture-preference automatic operation, the selected shutter time is displayed digitally within a view finder while the selected aperture appears as an analog value. | |
