Keyboard training device

Details Keyboard training device Keyboard training device

2001-10-19

2003-06-24

Holtje, Martie K. (Department: 2913)

Office supplies; artists and teachers materials

Teaching material

CD18S012000

Design Patent

active

D0476367

CLAIM:
The ornamental design for a keyboard training device, as shown and described.

REFERENCES:
patent: 502685 (1893-08-01), Terry
patent: 918283 (1909-04-01), Chrisman
patent: 1328818 (1920-01-01), Butler et al.
patent: 1377070 (1921-05-01), Helguera
patent: 1560020 (1925-11-01), Curley
patent: 1572385 (1926-02-01), Ellsworth
patent: 1687904 (1928-10-01), Larson et al.
patent: 2491332 (1949-12-01), Potter
patent: 2800727 (1957-07-01), Potter
patent: 3161967 (1964-12-01), Siegel et al.
patent: 3229800 (1966-01-01), Krag
patent: D242877 (1976-12-01), Bologna
patent: 4075465 (1978-02-01), Funk et al.
patent: D300040 (1989-02-01), Dermody
patent: 4902231 (1990-02-01), Freer
patent: 5286125 (1994-02-01), DiGiosia
patent: 5419704 (1995-05-01), North
patent: 5626429 (1997-05-01), Choate
patent: 5709550 (1998-01-01), Devine
patent: D395450 (1998-06-01), Drumm et al.
patent: 5790053 (1998-08-01), Chang
patent: 5938353 (1999-08-01), Butler

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