-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Bicycle speedometer
-
Patent number D276707
-
Issue date Dec 11, 1984
-
Marc H. Segan
-
D10 - Measuring, testing, or signalling instruments
-
-
-
Megaphone
-
Patent number D271968
-
Issue date Dec 27, 1983
-
Marc H. Segan
-
D14 - Recording, communication, or information retrieval equipment
-
-
Music tone generator
-
Patent number 4,250,787
-
Issue date Feb 17, 1981
-
Calfax, Inc.
-
Marc H. Segan
-
G10 - MUSICAL INSTRUMENTS ACOUSTICS