Category:1924 inventions

1924 reconstruction

1924 conversions

1924 restorations

1924 renovations

1924 repairing

1924 work's replicas

1924 productions

1924 reproductions

1924 reissue models

1924 model changed

1924 released

1924 introductions

1924 re-introductions

1924 copyrighted

1924 developments

1924 discontinuations

1924 inventions

Phase of product life cycle →

Inventions of the 1920s : ←; 1920; 1921; 1922; 1923; 1924; 1925; 1926; 1927; 1929; →

Subcategories

This category has the following 2 subcategories, out of 2 total.

B

Blattnerphone (6 F)

U

Ukelin (3 C, 14 F)

Media in category "1924 inventions"

This category contains only the following file.

US patent 1579780 (1926-04-06, filed in 1924-12-03) Paul F, Richter (Phonoharp Company, Boston), Stringed Musical Instruments - Fig. 1.png 2,320 × 3,408; 107 KB

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