Loudspeaker

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Information

Patent Grant
D252025

References
Source

Patent Number
D252,025
Date Filed
Thursday, March 17, 1977
47 years ago
Date Issued
Tuesday, June 5, 1979
45 years ago

Inventors
- Robert B. Welch
- Joseph W. Griffith
Examiners
- Ansher; Bernard
Agents
- Olson; Oliver D.

US Classifications
- D14 - Recording, communication, or information retrieval equipment
- 181 - Acoustics
Field of Search
- US
- D14 33
- D14 34
- 181 199
- 181 151
- 181 147
- 181 189
- 181 150
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a loudspeaker, as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
D229066	Ekdahl et al.	Nov 1973
D235562	Robson	Jun 1975
D240637	O'Neil	Jul 1976
3964571	Snell	Jun 1976