COMMUNICATION BOARDS

Brand	Owner (click to sort)	Address	Description
TACTICS	PETER PEPPER PRODUCTS, INC.	17929 S. Susana Road Compton CA 90224	COMMUNICATION BOARDS, BULLETIN AND TACK BOARDS, CHANGEABLE LETTER DIRECTORIES AND WRITING SURFACES;
TENEX ERASABLES	TENEX CORPORATION	230 W. Superior St., 2nd Floor Chicago IL 60654	communication boards, namely magnetic and non-magnetic dry erase boards for writing and bulletin boards for home and office use;ERASABLES;
TENEX FLIPABLES	TENEX CORPORATION	230 W. Superior St., 2nd Floor Chicago IL 60654	communication boards, namely magnetic and non-magnetic dry erase boards for writing and bulletin boards for home and office use;
TENEX FLIPBOARDS	TENEX CORPORATION	230 W. Superior St., 2nd Floor Chicago IL 60654	Communication boards, namely, magnetic and non-magnetic dry-erase boards for writing and bulletin boards for home and office use;TENEX FLIP BOARDS;FLIPBOARDS;
TENEX FLIPNOTES	TENEX CORPORATION	230 W. Superior St., 2nd Floor Chicago IL 60654	communication boards, namely writing boards and bulletin boards for home and office use;TENEX FLIP NOTES;
TENEX FOLDABLES	TENEX CORPORATION	230 W. Superior St., 2nd Floor Chicago IL 60654	communication boards, namely magnetic and non-magnetic dry erase boards for writing and bulletin boards for home and office use;FOLDABLES;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A mechanical acoustic filter is formed of boards made by using erosion etching. The filter may be used in electric condenser microphones. The filter may be made of one or a plurality of boards each being made by erosion etching according to different requirements. The boards can be printed circuit boards, ply boards, or of other materials. Every etched board has corresponding paths, which after the boards are assembled, form an acoustic filtering path that not only can extend the length of the path to filter out high frequency noise more efficiently, but also can reduce the entire volume of the microphone assembly.