Music – Accessories – Exercising devices
Patent
1986-07-31
1987-04-21
Franklin, Lawrence R.
Music
Accessories
Exercising devices
84398, 84453, G09B 1506
Patent
active
046586970
ABSTRACT:
A training mouthpiece for brass instruments in which the walls of the mouthpiece are made of transparent material and the walls of the mouthpiece are of constant thickness to minimize or avoid distoration of view through the walls. The undistorted visual capacity enables a student or teacher of a brass instrument to clearly and undistortedly view the portion of the lips within the mouthpiece thereby providing additional information about the student.
REFERENCES:
patent: 1740013 (1929-12-01), Gulick
patent: 2504336 (1950-04-01), Kleczka
patent: 3721151 (1973-03-01), Dimond
patent: 4120228 (1978-10-01), Windows
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