Number | Name | Date | Kind |
---|---|---|---|
2094047 | Smart | Sep 1937 | |
4128143 | Petterson et al. | Dec 1978 | |
4497391 | Mendelsohn et al. | Feb 1985 | |
4674604 | Williams | Jun 1987 | |
4750591 | Coste et al. | Jun 1988 | |
4755091 | Potucek et al. | Jul 1988 | |
4964804 | Carr et al. | Oct 1990 | |
5107964 | Coste et al. | Apr 1992 | |
5202540 | Auer et al. | Apr 1993 | |
5321216 | Jamieson et al. | Jun 1994 | |
5407028 | Jamieson et al. | Apr 1995 |
Entry |
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American National Standard Saftey Code for Elevators, Dumbwaiters, Escalators and Moving Walks, ANSI A17.1-1978, Dec. 1979. |