Capacitor microphone

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment

Design Patent

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Design Patent

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D0517534

CLAIM:
We claim the ornamental design for a capacitor microphone, as shown and described.

REFERENCES:
patent: 2196342 (1940-04-01), Ruttenberg
patent: 2415602 (1947-02-01), Monaco
patent: 3033913 (1962-05-01), Dietze
patent: 4424407 (1984-01-01), Barbic
patent: D290006 (1987-05-01), Frost et al.
patent: D324388 (1992-03-01), Pulio et al.
patent: D332942 (1993-02-01), Julien
patent: 5708565 (1998-01-01), Fairbanks
patent: D434023 (2000-11-01), Tsuyuguchi et al.
patent: D470450 (2003-02-01), Olzak

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