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Patents for May Layden
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
1,102,700Jul. 07, 1914W. Spacke, D.T. Brownlee, F.W. SpackeInternal-Combustion Engineinternal combustion engine valves
1,108,265Aug. 25, 1914W. Spacke, D.T. Brownlee, F.W. SpackeInternal Combustion Engineinternal combustion engines
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