Autoharp (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Autoharp" in German language version.

refsWebsite

Global rank German rank

1storage.googleapis.com

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storage.googleapis.com

patentimages.storage.googleapis.com

W S Holloway: Autoharp and the like Instrument. Patent 975,865. Patented Nov. 15, 1910. patentimages.storage.googleapis.com