Telephone amplifier

The ornamental design for a telephone amplifier, substantially as shown and described.

FIG. 1 is a top plan view of a telephone amplifier showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof.

Patent	Priority	Assignee	Title
D299232,	Jan 30 1987	Motorola, Inc.; MOTOROLA, INC , A CORP OF DE	Housing panel for a portable cellular radio telephone or similar article
D327068,	Dec 01 1989	GN Netcom A/S	Headset amplifier
D413331,	Oct 26 1995	Westinghouse Electric Corporation	Mobile telephone housing
D678236,	Jun 16 2011	GN NETCOM A S	Speakerphone

Patent	Priority	Assignee	Title
3469336,
D243536,	Mar 13 1974	U.S. Philips Corporation	Intercommunication apparatus
D244209,	Sep 16 1975		Telephone
D247174,	Feb 03 1976	AG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP	Housing for a loudspeaking telephone
D261761,	Feb 22 1979	Systems Consultants, Inc.	Data terminal/acoustic coupler
D261764,	Sep 13 1979	RCA LICENSING CORPORATION, A DE CORP	Hand held transceiver or similar article
D275752,	Sep 15 1981	Mitel Corporation	Telephone control unit
D275753,	Sep 15 1981	Mitel Corporation	Combined telephone inter communication and automatic telephone dialing device
D280463,	Nov 14 1983		Zipper pull
D282166,	Jan 04 1983	John Manufacturing Limited	Hand free phone
D282179,	Sep 22 1982	John Manufacturing Limited	Combined telephone index and amplifier

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jun 06 1984	YUEN, JOHN SE-KIT	JOHN MANUFACTURING LIMITED, COMPANY OF HONG KONG	ASSIGNMENT OF ASSIGNORS INTEREST	004287	0757	pdf
Jul 16 1984		John Manufacturing Limited	(assignment on the face of the patent)

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