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Patents Granted on 1961-04-18
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,979,903	Apr. 18, 1961	L.R. Beck	Air-hydraulic apparatus	hydraulic apparatus
2,980,098	Apr. 18, 1961	H.E. Wayland	Grinding wheels	stoneworking

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