Number | Name | Date | Kind |
---|---|---|---|
4708945 | Murrell et al. | Nov 1987 | |
4749631 | Haluska et al. | Jun 1988 | |
4756977 | Haluska et al. | Jul 1988 |
Number | Date | Country |
---|---|---|
1174755 | Dec 1969 | GBX |
Entry |
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Accuglass.RTM. Product Literature, Allied Chemical Co. (undated). |