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4829809 | Tantram et al. | May 1989 | |
5310472 | Dietz et al. | May 1994 | |
5741413 | Capetanopoulos | Apr 1998 | |
5780710 | Murase et al. | Jul 1998 |
Entry |
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Miguel, A.H. et al, "Diffusion cell for the preparation of dilute vapor concentrations", Analytical Chemistry, pp. 1705-1707, Aug. 1975. |