Drawing of a clock fork from Koenig’s Catalogue, 1889

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Source: Koenig, Karl Rudolph: Catalogue des appareils d'acoustique. Paris: L. Landry, 1889, p. 19, Fig. 9 (No. 32)

Description:

"Horologe à diapason comparateur de 128 v. s. (fig. 9) .... 2.000 fr.

Clock Fork of 128 single vibrations.

Stimmgabeluhr mit Stimmgabel von 128 einfachen Schwingungen.

Koenig, Quelques expériences, p. 173."

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Source information

Type
Book
Author
Year of Publication
1889
Publisher
Impr. de P. Mouillot
Place Published
Paris

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