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Patent:GB184309616


Patent:GB 184309616
Title:Improvements in Calculating Machines
Date:28.07.1843
Place:Finsbury Circus
Country:Great Britain
Person:Wertheimber, David Isaac (P)
Company:
Internal Links:Sprossenrad
Keywords:
Link to the patent office:
(without guarantee)
 GB184309616


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9616

 Patent

"Stylus adder for sterling Chrono"

"Communicated by a certain Foreigner residing abroad..."

Vermutlich Adaption der Sprossenrad- Rechenmaschine von Roth

(Lit.: Trans. Soc. Arts, Vol. 55, 1944, p 130)

Zeichnung in  Teknisk Tidskrift Vol.12 (17 Dec 1932) S.137-144