Included in this photo gallery are the drawings and text from original patents. These are copies of the originals submitted by the inventor to the United States Patent and Trademark Office.
- William Abrams - Patent Drawing #450,550William Abrams - Patent Drawing
- William Abrams - Patent TextText for Patent
- James Adams #1,356,329
- James Adams #1,356,329
- George Alcorn #4,172,004
- Nathaniel Alexander #997,108
- Ralph Alexander #256,610
- Ralph Alexander #256,610
- Charles Allen #613,436
- Charles Allen #613,436
- James Allen #551,105
- James Allen #551,105
- Graphic Index
- Text Index
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