Microphone
Description
FIG. 1 is a perspective view of a microphone showing my new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a perspective view of a second embodiment of my new design; and
FIG. 6 is a bottom plan view of the second embodiment.
Referenced Cited
U.S. Patent Documents
D213567 | March 1969 | Kahn |
D239722 | April 1976 | Schmidt |
3201530 | August 1965 | Levy et al. |
3459902 | August 1969 | Warning |
3527902 | September 1970 | Liempd |
Patent History
Patent number: D247707
Type: Grant
Filed: Apr 1, 1977
Date of Patent: Apr 11, 1978
Inventor: William J. Armstrong (Cedar Rapids, IA)
Primary Examiner: Bernard Ansher
Attorney: Noel F. Heal
Application Number: 5/783,859
Type: Grant
Filed: Apr 1, 1977
Date of Patent: Apr 11, 1978
Inventor: William J. Armstrong (Cedar Rapids, IA)
Primary Examiner: Bernard Ansher
Attorney: Noel F. Heal
Application Number: 5/783,859
Classifications
Current U.S. Class:
D14/12
International Classification: D1401;
International Classification: D1401;