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Patents for Harold E. McCray | |||||
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Number | Date | Patentee | Title | Type | |
1,625,043 | Apr. 19, 1927 | H.E. McCray | Internal Combustion Engine | ignition systems | |
1,648,737 | Nov. 08, 1927 | H.E. McCray | Internal Combustion Engine | ||
1,803,120 | Apr. 28, 1931 | H.E. McCray | Internal Combustion Engine |