Musical instruments – String instrument – Harp
Patent
1980-12-15
1983-03-29
Herrmann, Winifred E.
Musical instruments
String instrument
Harp
D17 18, D1703
Patent
active
D02684187
REFERENCES:
patent: D41987 (1911-12-01), Clark
patent: D46659 (1914-11-01), Brendum
patent: D201316 (1965-06-01), Kreiss
patent: 1702643 (1929-02-01), Claiborne
patent: 3515026 (1970-06-01), Rohrbough
Hagland Kerstin M.
Hanses Ulf M.
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