Brevetti   Stati Uniti  

Patent:US2971809

Brevetto:	US 2971809
Titolo:	Magnetic Marking Means for Recording Media of Business Machines
Data:	14.02.1961
Luogo:
Nazione:	Stati Uniti
Persona:	H. Schmidt
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	US2971809 (espacenet),  US2971809 (uspto)

Aus der Patentschrift US2971809

• DATUM: 14.02.1961
• TITEL: Magnetic marking means for recording media of business machines
• PERSON: TAYLORIX ORGANISATION STIEGLER