Patent Grant
D359214
| Number | Name | Date | Kind |
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| D299692 | Steiner | Feb 1989 | |
| D301115 | Chapin et al. | May 1989 | |
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| 5060329 | Hudson | Oct 1991 |
| Number | Date | Country |
|---|---|---|
| 1203159 | Jul 1959 | FRX |
| 2438361 | Apr 1980 | FRX |
