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Patents for Ralph W. Nazel | |||||
Number | Date | Patentee | Title | Type | |
1,268,231 | Jun. 04, 1918 | E.J. Fritsch, R.W. Nazel | Fluid-power hammer | drop hammers | |
1,268,270 | Jun. 04, 1918 | R.W. Nazel | Fluid-power hammer | drop hammers | |
1,429,421 | Sep. 19, 1922 | E.J. Fritsch, R.W. Nazel | Fluid-power hammer | drop hammers |