Number | Name | Date | Kind |
---|---|---|---|
310766 | Wilhelm | Jan 1885 | |
4253351 | Allen | Mar 1981 | |
4276789 | Allen | Jul 1981 | |
4291597 | Allen | Sep 1981 | |
4377096 | Allen | Mar 1983 | |
4429444 | Allen | Feb 1984 | |
4437359 | Dejoux et al. | Mar 1984 |
Entry |
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The Wonderful Screwpull, brochure by Hallen Company, Sep. 1981. |