Number | Name | Date | Kind |
---|---|---|---|
991192 | Battenfeld | May 1911 | |
1088530 | Buse | Feb 1914 | |
1294854 | Welter | Feb 1919 | |
2029707 | Dodelin | Feb 1936 | |
2915799 | Andreasen | Dec 1959 | |
2919017 | Weber | Dec 1959 | |
2985349 | McGuire | May 1961 | |
3204775 | Smith et al. | Sep 1965 | |
3227411 | Treutler | Jan 1966 | |
3336643 | Robison | Aug 1967 | |
3429542 | Fagan | Feb 1969 | |
4005844 | Richmond | Feb 1977 | |
4049164 | Sullivan et al. | Sep 1977 | |
4213592 | Lingenfalser | Jul 1980 | |
4304383 | Huston | Dec 1981 | |
4341267 | Lagasse | Jul 1982 | |
4505448 | Massie | Mar 1985 |
Entry |
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Photographs of four (4) prior art devices. |