Number | Name | Date | Kind |
---|---|---|---|
1822740 | Gallasch et al. | Sep 1931 | A |
5182863 | Rando | Feb 1993 | A |
5287627 | Rando | Feb 1994 | A |
5594993 | Tager et al. | Jan 1997 | A |
6012229 | Shiao | Jan 2000 | A |
6065217 | Dong | May 2000 | A |
D457446 | Kallabis | May 2002 | S |
6577388 | Kallabis | Jun 2003 | B2 |
Entry |
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Cole Parmer Industrial Advantage Catalog, 2001/2002, p. 546, laser levels.* |
Northern Tool & Equipment, Summer 2002, p. 177, pocket type rotary laser level, [retrieved on Apr. 7, 2004]. Retrieved from internet using Google Advanced Catalog search, <URL:www.notherntool.com>. |