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Patent:US4677893

Patent:	US 4677893
Title:	Quick music notes Slide Rule
Date:	07.07.1987
Place:
Country:	USA
Person:	Fahnestock, Carl (P)
Company:
Internal Links:	Rechenschieber, Musik
Keywords:
Link to the patent office: (without guarantee)	US4677893 (espacenet),  US4677893 (uspto)

Aus der Patentschrift US4677893

• DATUM: 07.07.1987
• TITEL: Quick music notes slide rule
• PERSON: FAHNESTOCK E CARL