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Patent:US1404019

Patent:	US 1404019
Title:	Mechanical Calculating Device
Date:	17.01.1922
Place:
Country:	USA
Person:	C. A. Gilson
Company:	Gilson Slide Rule Co (P)
Internal Links:	Gilson Atlas Calculator
Keywords:
Link to the patent office: (without guarantee)	US1404019 (espacenet),  US1404019 (uspto)

Aus der Patentschrift US1404019

• Henry Aldinger and Ed Chamberlain: "Gilson Slide Rules - Part II - The Large Rules" in Journal of the Oughtred Society Vol- 9, No. 2, Fall 2000, p. 47ff