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Patent:US3522418

Brevetto:	US 3522418
Titolo:	Key Mechanism for Mechanical Calculators
Data:	04.08.1970
Luogo:	Villevaude, Frankreich
Nazione:	Stati Uniti
Persona:	Arvai, Tibor (P)
Ditta:	Sperry Rand (P)
Link interni:
Keywords:
Link al brevetto: (without guarantee)	US3522418 (espacenet),  US3522418 (uspto)

Aus der Patentschrift US3522418

• DATUM: 04.08.1970
• TITEL: KEY MECHANISM FOR MECHANICAL CALCULATORS
• PERSON: SPERRY RAND CORP
• Patent Family: ( Patent:DE1815550, Patent:FR1562883, Patent:GB1226637, Patent:US3522418 )