Telephone mouthpiece keyboard

The ornamental design for a telephone mouthpiece keyboard, as shown and described.

FIG. 1 is a perspective view of a telephone mouthpiece keyboard, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevation view thereof, all side views being substantially identical; and

FIG. 4 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
6067358,	Mar 25 1998		Ergonomic cellular phone
D253236,	Oct 12 1977		Telephone mouthpiece cover
D272823,	Nov 09 1981	METRO-TEL CORP, A CORP OF DE	Tone generator mouthpiece console
D274429,	Feb 08 1982	Walker Equipment Corporation	Telephone handset transmitter cup
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D487263,	Oct 10 2002	Quanta Computer, Inc.	Keypad
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D488151,	Sep 06 2002	Microsoft Mobile Oy	Key button arrangement for a handset
D488804,	Sep 06 2002	Microsoft Mobile Oy	Key button area for a handset
D490405,	May 20 2002	Microsoft Mobile Oy	Keymat for a handset
D493449,	Oct 10 2002	Quanta Computer, Inc.	Keypad
D496926,	Aug 01 2003	HMD Global Oy	Key button area for a handset
D574373,	Dec 07 2006	Unitel High Technology Corporation	Keypad
D670685,	Jun 20 2012	FIH (Hong Kong) Limited	Cover of an electronic device having surface ornamentation

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Oct 08 1976		Telephone Electronics Corporation	(assignment on the face of the patent)
Dec 31 1986	BUSCOM SYSTEMS, INC , A CORP OF CA	DESIGN DEVELOPMENT INCORPORATED, A CORP OF CA	ASSIGNMENT OF ASSIGNORS INTEREST	004711	0615	pdf
Jun 07 1988	DESIGN DEVELOPMENT INCORPORATED MERGED INTO	METRO-TEL CORP, A CORP OF DE	MERGER SEE DOCUMENT FOR DETAILS EFFECTIVE JUNE 30, 1988	004959	0860	pdf

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