Number | Name | Date | Kind |
---|---|---|---|
1718253 | Putnam | Jun 1929 | |
1778145 | Cumfer | Oct 1930 | |
2000243 | Manske | May 1935 | |
2073490 | Lewin | Mar 1937 | |
3303264 | Saul et al. | Feb 1967 | |
3417191 | Fork | Dec 1968 | |
3426492 | Fork | Feb 1969 | |
3426802 | Fork | Feb 1969 | |
3459875 | Fork | Aug 1969 | |
3592956 | Fork | Jul 1971 | |
3701837 | Fork | Oct 1972 | |
3721051 | Fork | Mar 1973 | |
3793793 | Dobbins | Feb 1974 | |
3886702 | Fork | Jun 1975 | |
3903666 | Fork | Sep 1975 | |
3932696 | Fork et al. | Jan 1976 | |
4010314 | Kohaut | Mar 1977 | |
4012874 | Brogan et al. | Mar 1977 | |
4085558 | Albrecht | Apr 1978 | |
4178469 | Fork | Dec 1979 | |
4194332 | Fork | Mar 1980 | |
4232493 | Gray et al. | Nov 1980 | |
4297524 | Fork | Oct 1981 | |
4338484 | Littrell | Jul 1972 |
Entry |
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MAC-FAB, In-Floor Electrification Systems for Concrete and Steel Framing. (4 pp.), Catalog MF-520, 5 Color Photographs (A through E) - Littco Product. |