FR457872A - Perfectionnements apportés aux pianos mécaniques - Google Patents

Perfectionnements apportés aux pianos mécaniques

Info

Publication number
FR457872A
FR457872A FR457872A FR457872DA FR457872A FR 457872 A FR457872 A FR 457872A FR 457872 A FR457872 A FR 457872A FR 457872D A FR457872D A FR 457872DA FR 457872 A FR457872 A FR 457872A
Authority
FR
France
Prior art keywords
improvements made
pianos
mechanical
mechanical pianos
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.)
Expired
Application number
FR457872A
Other languages
English (en)
Inventor
Frederick William Lanchester
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR457872A publication Critical patent/FR457872A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10F—AUTOMATIC MUSICAL INSTRUMENTS
    • G10F1/00—Automatic musical instruments
    • G10F1/02—Pianofortes with keyboard
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/52—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another additionally providing control of relative angular displacement

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR457872A 1912-04-23 1913-04-22 Perfectionnements apportés aux pianos mécaniques Expired FR457872A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB457872X 1912-04-23

Publications (1)

Publication Number Publication Date
FR457872A true FR457872A (fr) 1913-09-27

Family

ID=1497517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR457872A Expired FR457872A (fr) 1912-04-23 1913-04-22 Perfectionnements apportés aux pianos mécaniques

Country Status (1)

Country Link
FR (1) FR457872A (fr)

Similar Documents

Publication Publication Date Title
FR17676E (fr) Perfectionnements aux électro-aimants
FR457872A (fr) Perfectionnements apportés aux pianos mécaniques
FR446305A (fr) Perfectionnements aux pianos mécaniques
FR451198A (fr) Perfectionnements aux pianos mécaniques
FR455181A (fr) Perfectionnements aux pianos mécaniques
FR439508A (fr) Perfectionnements aux saxophones
CH55044A (de) Harmonika
FR442509A (fr) Perfectionnements aux vélocipèdes
FR465659A (fr) Perfectionnements apportés aux carburateurs
FR441049A (fr) Perfectionnements apportés aux gazogènes
FR453551A (fr) Perfectionnements aux électro-aimants
FR455484A (fr) Perfectionnements aux sonneries électriques
FR441751A (fr) Perfectionnements aux cinématographes
FR450430A (fr) Perfectionnements aux norias
FR448393A (fr) Violon mécanique
CH62373A (de) Klavier
FR458088A (fr) Perfectionnements apportés aux commutateurs
FR439065A (fr) Perfectionnements apportés aux cardes
FR461694A (fr) Perfectionnements apportés aux carburateurs
FR456913A (fr) Perfectionnements aux magnétos
FR442503A (fr) Perfectionnements apportés aux fusées paragreles
FR466199A (fr) Perfectionnements aux gazogènes
FR453490A (fr) Perfectionnements aux gazogènes
FR448454A (fr) Perfectionnements apportés aux gazogènes
FR449172A (fr) Perfectionnements aux gazogènes