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Patent US 3831199A: Difference between revisions
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|Title=Common transport for magnetic tape cartridge or magnetic card cartridge | |Title=Common transport for magnetic tape cartridge or magnetic card cartridge | ||
|Company=Tektronix Inc | |Company=Tektronix Inc | ||
|Inventors=Howard Vollum; | |Inventors=Howard Vollum; Sid Broughton | ||
|Filing date=1973-03-19 | |Filing date=1973-03-19 | ||
|Grant date=1974-08-20 | |Grant date=1974-08-20 | ||
}} | }} | ||