Number | Name | Date | Kind |
---|---|---|---|
2759217 | Peterson | Aug 1956 | |
2873474 | Shields et al. | Feb 1959 | |
2912716 | Frownfelter et al. | Nov 1959 | |
2933759 | Startzell | Apr 1960 | |
3962153 | Gore | Jun 1976 | |
4085175 | Keuchel | Apr 1978 | |
4187390 | Gore | Feb 1980 | |
4304010 | Mano | Dec 1981 | |
4331624 | Yazawa et al. | May 1982 | |
4374690 | Canterino et al. | Feb 1983 | |
4685230 | Mason, III | Aug 1987 | |
4830062 | Yamamoto et al. | May 1989 | |
4877661 | House et al. | Oct 1989 | |
4966807 | Harvey et al. | Oct 1990 | |
5167987 | Yu | Dec 1992 |
Number | Date | Country |
---|---|---|
2825210 | Jun 1978 | DEX |
63247-021-A | Apr 1987 | JPX |
1329-991-A | Mar 1985 | SUX |
Entry |
---|
T. M. Long Co. Inc., undated product catalog of laboratory Instruments, pp. 1-36, "Film Stretcher". |