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| 3577660 | Kenney | May 1971 | A |
| 4309038 | Spoon | Jan 1982 | A |
| D328328 | Juarez | Jul 1992 | S |
| 5195510 | Svacina | Mar 1993 | A |
| D376015 | Newberry | Nov 1996 | S |
| D377100 | Gladieux, Jr. | Dec 1996 | S |
| D396110 | Kang | Jul 1998 | S |
| D403429 | Blanchard | Dec 1998 | S |
| D439378 | Loomis | Mar 2001 | S |
| D617395 | Colangelo | Jun 2010 | S |
| D853495 | Muellenberg | Jul 2019 | S |
| 10448584 | Nishimura et al. | Oct 2019 | B2 |
| 11178827 | Herrema | Nov 2021 | B1 |
| 20010029904 | Viola | Oct 2001 | A1 |
| 20150230419 | Ishizaka et al. | Aug 2015 | A1 |
| 20210345561 | Herrema | Nov 2021 | A1 |
| Entry |
|---|
| “Molecules in 3D”; Depart. Of Chemistry, University of Wisconsin-Madison; Sep. 21, 2020; Accessed May 20, 2022; URL:< https://www2.chem.wisc.edu/deptfiles/chem108/modelsactivity/molecules.html > (Year: 2020). |
| Hydroponic Growing Media, pp. 1-26, https://www.epicgardening.com/hydroponic-growing-media/, downloaded Mar. 10, 2020. |
| Photo of other plastic media, at least as early as Jan. 12, 2020. |