DE250644C - - Google Patents

Info

Publication number
DE250644C
DE250644C DENDAT250644D DE250644DA DE250644C DE 250644 C DE250644 C DE 250644C DE NDAT250644 D DENDAT250644 D DE NDAT250644D DE 250644D A DE250644D A DE 250644DA DE 250644 C DE250644 C DE 250644C
Authority
DE
Germany
Prior art keywords
key
scale
keys
plate
cutouts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT250644D
Other languages
German (de)
English (en)
Publication of DE250644C publication Critical patent/DE250644C/de
Active legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00—Teaching music
    • G09B15/02—Boards or like means for providing an indication of notes
    • G09B15/026—Non-electrically operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stringed Musical Instruments (AREA)
  • Auxiliary Devices For Music (AREA)
DENDAT250644D Active DE250644C (OSRAM)

Publications (1)

Publication Number Publication Date
DE250644C true DE250644C (OSRAM)

Family

ID=509156

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT250644D Active DE250644C (OSRAM)

Country Status (1)

Country Link
DE (1) DE250644C (OSRAM)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497364A (en) * 1945-02-10 1950-02-14 John H Mayberry Music chord indicator and transposing device
DE938348C (de) * 1953-03-21 1956-01-26 Josef Rentmeister Vorrichtung zur bildlichen Darstellung von Tonleitern, Akkorden u. dgl.
US3220296A (en) * 1964-07-28 1965-11-30 James H Giltzow Music teaching device
US3691895A (en) * 1970-12-01 1972-09-19 Charles A Nessler Play-by-chord slide rule

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497364A (en) * 1945-02-10 1950-02-14 John H Mayberry Music chord indicator and transposing device
DE938348C (de) * 1953-03-21 1956-01-26 Josef Rentmeister Vorrichtung zur bildlichen Darstellung von Tonleitern, Akkorden u. dgl.
US3220296A (en) * 1964-07-28 1965-11-30 James H Giltzow Music teaching device
US3691895A (en) * 1970-12-01 1972-09-19 Charles A Nessler Play-by-chord slide rule

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