Suchergebnisse für: Tillman, Ferdinand

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Patent:US1003671
19.09.1911 Tillman, Ferdinand (P) : Calculating attachment for type-writing machines
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Patent:US1379322
24.05.1921 Tillman, Ferdinand (P) : Calculating attachment for type-writing machines
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Patent:US1503076
29.07.1924 Tillman, Ferdinand (P) Yard-o-Meter Corp. : Calculating machine