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Die große Enzyklopädie des mechanischen Rechnens

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Patent:USD148458


Patent:US D148458
Title:Design for a keyboard for calculating machines or similar articles
Date:27.01.1948
Place:Pasadena und Los Angeles
Country:USA
Person:Clary, Hugh (P) Robert E. Boyden
Company:Clary (P) Multiplier Corp.
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(without guarantee)
 USD148458 (espacenet),  USD148458 (uspto)


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