Number | Name | Date | Kind |
---|---|---|---|
3757194 | Weber et al. | Sep 1973 | |
4779687 | Schreiber et al. | Oct 1988 | |
4881294 | Riedl | Nov 1989 | |
4930583 | Fushiya et al. | Jun 1990 | |
5033552 | Hu | Jul 1991 | |
5054563 | Zapf | Oct 1991 | |
5121803 | Hartmann et al. | Jun 1992 | |
5298821 | Michel | Mar 1994 | |
5451123 | Fertitta, Jr. | Sep 1995 | |
5553675 | Pitzen et al. | Sep 1996 | |
5653033 | McDowell | Aug 1997 | |
5671815 | Kabatnik et al. | Sep 1997 | |
5813805 | Kopras | Sep 1998 |
Number | Date | Country |
---|---|---|
281880 | Nov 1989 | JPX |
Entry |
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Brochure by Roto Zip Tool Corporation for ROTO MITE, published at various times prior to 1996. |
Operating Guide for SPIRACUT published by Roto Zip Tool Corporation, Jan. 1996. |