Number | Name | Date | Kind |
---|---|---|---|
2952341 | Weiler | Sep 1960 | |
3128851 | Deridder et al. | Apr 1964 | |
3165104 | Zippel | Jan 1965 | |
3208457 | Zippel | Sep 1965 | |
3358848 | Johnsson | Dec 1967 | |
3980360 | Wright et al. | Sep 1976 | |
4033652 | O'Brien | Jul 1977 | |
4056296 | Hedstrom et al. | Nov 1977 | |
4155607 | Sitler et al. | May 1979 | |
4171854 | Hedstrom et al. | Oct 1979 | |
4327952 | Cournoyer et al. | May 1982 | |
4473158 | Barbar | Sep 1984 | |
4679955 | Marsh | Jul 1987 |
Entry |
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Applicant's Exhibit No. 1, drawing showing a center hook filing device hanger bar, admitted to be prior art. |
Applicant's Exhibit No 2, drawing showing two different hanger bars, both of which are admitted to be prior art. |
Applicant's Exhibit No 3, copy of catalog Form No. 1-90-4 of Wright Line, A Unit of Applied Power Inc., 160 Gold Star. |
Boulevard, Worcester, Massachusetts 01606, admitted to be prior art. |