|
The ornamental design for a speech amplifier tube, as shown and described. |
FIG. 1 is an isometric view of a speech amplifier tube showing my new design, the broken line showing of the human head is for illustrative purposes only and forms no part of the claimed design;
FIG. 2 is an enlarged top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
Patent | Priority | Assignee | Title |
7356155, | Jul 18 2003 | LAZARUS TECHNOLOGIES, INC | Device and method for assisting vocalists in hearing their vocal sounds |
D479269, | Jun 25 2002 | LEARNING LOFT, INC | Handheld reading practice device |
D573131, | Jul 12 2007 | Super Duper Publications | Acoustic feedback headset |
D616878, | Jul 08 2009 | DESIGNED 2 INNOVATE, LLC | Handset |
D819417, | Dec 30 2016 | Milwaukee Electric Tool Corporation | Handle for a pick |
Patent | Priority | Assignee | Title |
3155189, | |||
3182746, | |||
3259204, | |||
3867770, | |||
4464119, | Nov 10 1981 | Method and device for correcting speech | |
453848, | |||
5507648, | Aug 03 1994 | Hollow tubular device to assist patients during speech therapy | |
5827173, | Aug 19 1996 | Prenatal audio communication device | |
186439, | |||
D382273, | Mar 08 1996 | Acoustic telephone | |
D403326, | Apr 17 1997 | Telephone receiver cover |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |