Telephone amplifier

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

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

FIG. 2 is a bottom rear perspective view thereof; and

FIG. 3 is a front perspective view taken at a reduced scale and connected to a telephone handset.

The broken lines representing the conventional telephone are shown for illustrative purposes.

Referenced Cited
U.S. Patent Documents
D201021 May 1965 Prager
D230487 February 1974 Dawson et al.
3301955 January 1967 Clements, Jr.
3619507 November 1971 Metz
4151376 April 24, 1979 Walker, Jr.
Other references
  • Lafayette Cat. 750, 1975, p. 122, Item No. 7, Snap-On Telephone Amp & Hearing Aid.
Patent History
Patent number: D269267
Type: Grant
Filed: Sep 14, 1982
Date of Patent: Jun 7, 1983
Inventor: Dwight C. Brown (Arlington, VA)
Primary Examiner: Bernard Ansher
Application Number: 6/417,918
Classifications
Current U.S. Class: D14/57
International Classification: 10403;