Number | Name | Date | Kind |
---|---|---|---|
1690471 | Breed | Nov 1928 | A |
1809104 | Breed et al. | Jun 1931 | A |
1935473 | Langford | Nov 1933 | A |
2403807 | Lansing | Jul 1946 | A |
2702161 | Lansing | Feb 1955 | A |
2717739 | Burkhardt et al. | Sep 1955 | A |
2785862 | Lansing | Mar 1957 | A |
2989240 | Lansing | Jun 1961 | A |
3027092 | Groff | Mar 1962 | A |
3107054 | Talboys | Oct 1963 | A |
3190558 | Griffiths | Jun 1965 | A |
Entry |
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Fig. 1 Prior Art Profiled Bar manufactured by Canadian Pacific Railway/Canadian National Railway. |
Fig. 2 Prior Art Profiled Bar manufactured by Canadian National Railway. |
Fig. 3 Prior Art Profiled Bar manufactured by Canadian Pacific Railway. |
Fig. 4 Prior Art Profiled Bar manufactured by Jude Bar. |
Fig. 5 Prior Art Profiled Bar manufactured by Jude Bar. |