Patent Grant
D432747
| Number | Name | Date | Kind |
|---|---|---|---|
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| D396908 | Beechuk et al. | Aug 1998 | |
| D401703 | Beechuk et al. | Nov 1998 | |
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| 2137944 | MacLeod | Nov 1938 | |
| 2187671 | Suddarth | Jan 1940 | |
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| 2842276 | Butler | Jul 1958 | |
| 3011722 | Federichi et al. | Dec 1961 | |
| 3055367 | Thorstad | Sep 1962 | |
| 3085601 | Zellweger | Apr 1963 | |
| 3092106 | Butler | Jun 1963 | |
| 3094152 | Kenny et al. | Jun 1963 | |
| 3099028 | Ardito | Jul 1963 | |
| 3131712 | Risley et al. | May 1964 | |
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| 3200994 | Levinson et al. | Aug 1965 | |
| 3278974 | Nighswander | Oct 1966 | |
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| 3542240 | Solowey | Nov 1970 | |
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| 3826408 | Berndt et al. | Jul 1974 | |
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| 4079865 | Kutik | Mar 1978 | |
| 4109832 | Kutik et al. | Aug 1978 | |
| 4119386 | Cushing | Oct 1978 | |
| 4163500 | Gunne et al. | Aug 1979 | |
| 4173295 | Steinman | Nov 1979 | |
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| 4243150 | Gunne et al. | Jan 1981 | |
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| 4572397 | Arens | Feb 1986 | |
| 4699188 | Baker et al. | Oct 1987 | |
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| 4747518 | Laauwe | May 1988 | |
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| 4921150 | Lagergren et al. | May 1990 | |
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| Number | Date | Country |
|---|---|---|
| 746231 | Nov 1966 | CAX |
| 1 269 210 | May 1990 | CAX |
| 2225303 | Jun 1998 | CAX |
| 0365770 | May 1990 | EPX |
| 1031533 | Jun 1958 | DEX |
| 3439388 | Apr 1986 | DEX |
| WO9532059 | Nov 1995 | WOX |
