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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8137769 | Landscape concealment structure A landscape concealment structure (200) includes a housing (150) formed by shell (100) and a cover panel member (140) coupled to the shell and overlaying an enclosed space (126) into which a utility structure or mechanical device (... | 03/20/2012 |
| 7985933 | Assembling structure of a quick installation/uninstallation switch An assembling structure of a quick installation/uninstallation switch, including a layout fixing seat formed with a central opening and a transverse insertion slot intersecting the central opening. A locating member is inserted through the transverse insertion slot.... | 07/26/2011 |
| 6225914 | Automatic voice device for fire extinguisher The present invention proposes a voice device for a fire extinguisher. The voice device is installed on a fire extinguisher. The voice device comprises a power source, a control switch, a spring rocking switch, a capacitor, a voice IC, and a sound device.... | 05/01/2001 |
| 6223415 | Process for manufacturing AL-Si alloys for use in vehicle propeller shafts A process for manufacturing an Al--Si alloy for use in a vehicle propeller shaft is provided. The Al--Si alloy manufacturing process includes the steps of heating and melting Al--Si alloy where Si contains 13-40 weight percentage (wt %) of the whole alloy... | 05/01/2001 |
| 6222527 | Compact key structure A key structure comprises base plate, elastic member, frame and cap wherein the conductive membrane thereof is single-film structure, the contact of the conductive membrane corresponding to each key is of meshed-hook shape ({character pullout}), a venting... | 04/24/2001 |
| 6159115 | Handle structure for a racket A handle for a racket includes a handle part from which an engaging section longitudinally extends. A carrier member is mounted to the engaging section and has a plurality of weights received in an outside and/or an end thereof A butt cap is mounted to th... | 12/12/2000 |
