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Patent:US2812905

Patent:	US 2812905
Title:	Slide Rules
Date:	12.11.1957
Place:
Country:	USA
Person:	H. Bachmann
Company:
Internal Links:	Rechenschieber
Keywords:
Link to the patent office: (without guarantee)	US2812905 (espacenet),  US2812905 (uspto)

Aus der Patentschrift US2812905

• DATUM: 12.11.1957
• TITEL: Slide rules
• PERSON: FABER CASTELL A W