Number | Name | Date | Kind |
---|---|---|---|
3399377 | Warzecka | Aug 1968 | |
3699498 | Hardesty et al. | Oct 1972 | |
3761869 | Hardesty et al. | Sep 1973 | |
3850497 | Krumreich et al. | Nov 1974 | |
3870839 | Almich et al. | Mar 1975 | |
3998514 | Hardesty | Dec 1976 | |
4025147 | Van Arsdale et al. | May 1977 | |
4054354 | Unger | Oct 1977 |
Number | Date | Country |
---|---|---|
2119916 | Nov 1972 | DEX |
2239463 | Feb 1974 | DEX |
Entry |
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Suttle Apparatus Corp. Advertisement, Lawrenceville, IL, 4-1978. |