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All Patents in class 235/60.4
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
2,894,683Jul. 14, 1959E.P. DavisMechanical indicating apparatus for computing machinescomputer apparatus and systems
2,895,121Jul. 14, 1959W.R. BlissRead-out apparatus for movable indicating mechanismscomputer apparatus and systems
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