Number | Name | Date | Kind |
---|---|---|---|
887530 | Scott et al. | May 1908 | |
1169649 | Kafader et al. | Jan 1916 | |
2466855 | Lauver | Aug 1947 | |
2733918 | Fisher | Feb 1956 | |
2835488 | Hubbell | May 1958 | |
2893726 | Sharpe | Jul 1959 | |
3099438 | Fritz | Jul 1963 | |
3521921 | Miyazaki | Jul 1970 | |
3614147 | Spector | Oct 1971 | |
3829138 | Morita | Aug 1974 | |
3874117 | Boehm | Apr 1975 | |
4183177 | Kurdziel | Jan 1980 | |
4660324 | Nyenbrink | Apr 1987 | |
4771218 | McGee | Sep 1988 | |
4902052 | Laine | Feb 1990 | |
5050346 | Eccleston | Sep 1991 | |
5095654 | Eccleston | Mar 1992 | |
5269098 | Reoman | Dec 1993 | |
5375374 | Rohraff | Dec 1994 |
Number | Date | Country |
---|---|---|
1462376 | Nov 1966 | FRX |
Entry |
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Power Access Corporation, Product Sheet, Automatic Door Opener. |
Dor-O-Matic.RTM. JR-Swing Handicap Door Operator Product Sheet. |
Stanley Magic-Door, Product Sheet Automatic Door Operator. |
C&C Dynamics Residential Door Swing Operator Product Advertisement. |