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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 6929410 | Camera shutter Systems and methods are disclosed for providing camera shutter mechanisms. For example, in accordance with an embodiment of the present invention, an improved camera shutter mechanism and techniques for manufacturing the camera shutter mechanism are disclosed. ... | 08/16/2005 |
| 6763185 | Camera and shutter device A camera includes a movable aperture stop plate, which changes over a light path of object light between plural stop states. A depressible shutter release button is provided. A shutter mechanism is released in response to depression of the shutter release button aft... | 07/13/2004 |
| 6561704 | Camera with self-timer and timer for use in camera According to the invention there is provided a camera having at least one image capture system. A timer latch is biased for movement between a lock position preventing image capture system from capturing an image and a release position that allows the ima... | 05/13/2003 |
| 5946514 | Camera with self-timer A camera comprises a shutter release that is manually depressible to initiate picture-taking, and a delayed action device for automatically depressing the shutter release to initiate picture-taking after a predetermined interval of time has elapsed. The s... | 08/31/1999 |
| 5822639 | Camera having self timer unwind without exposure A camera having a body, a push-pull, a sliding member, a shutter release, and a timer. The push-pull is movable between primary and secondary positions. The sliding member has a shutter button arm, a shutter actuation arm, and a timer release arm. The sli... | 10/13/1998 |
| 5105213 | Self-timer device A shutter mechanism for a camera having a release member, which is arranged to be moved in a predetermined moving direction from an original position by depressing a shutter button, and a delay member. The delay member is movable relative to the release m... | 04/14/1992 |
| 4728979 | Apparatus for exposure control/focus adjustment for camera Apparatus for exposure control/focus adjustment for a camera comprises an exposure controlling mechanism, a focus adjusting mechanism and a source of rotary drive. The drive from the source is transmitted through a differential gearing to the exposure con... | 03/01/1988 |
| 4205908 | Selftimer on camera A camera shutter equipped with a selftimer device has an interlocking member for coordinating the movement of the camera operating member and the selftimer device to obtain accurate operation of the shutter release member. The interlocking member has a fi... | 06/03/1980 |
| 4205910 | Control device for a camera shutter A control device for the shutter of a camera comprises an opening member for opening a shutter aperture to initiate taking of an exposure, a closing member for closing the aperture to complete the exposure, and opening and closing pawls for respectively r... | 06/03/1980 |
| 4204763 | Exposure time setting device for shutter of camera An exposure time setting device is provided for effecting the exposure time for the shutter in response to the dial position of an exposure time setting dial disposed on an upper surface of a camera and movable in an operating plane. The device is provide... | 05/27/1980 |
| 4196996 | Shutter for cameras A shutter for cameras comprising a control cam, a starting lever to be used to release the control cam in the cocked state and bring a gear governor into an operatable state, a governor lever engageable with the control cam to operate the gear governor an... | 04/08/1980 |
| 4184761 | Exposure control device of shutter for camera An exposure control device for the shutter of a camera wherein an opening member opens the aperture of the shutter to start exposure, a closing member closes the aperture to complete exposure, an opening hook and a closing hook retain at a charged positio... | 01/22/1980 |
| 4112448 | Resettable self-timer In a self-timer starting its operation by releasing blocking of an anchor or intermediate gear blocking member, a self-timer featured in that there are provided a blocking lever which is able to move said anchor or intermediate gear to blocking position a... | 09/05/1978 |
| 4051501 | Built-in self-timer for cameras A built-in self-timer for cameras comprising a cocking member movable to the uncocked position and cocked position, a sector gear engageable with said cocking member and capable of being brought to the cocked position from the uncocked position by the coc... | 09/27/1977 |
| 4051500 | Photographic camera with a time-delay mechanism A photographic camera has a shutter and a shutter setting and releasing mechanism which includes an operating member which moves in a predetermined path and direction when released. The camera further includes a time-delay mechanism for the shutter which ... | 09/27/1977 |
