USD356090SExpiredUtility

Parabolic listening device

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Assignee: RUSSELL WILLIAM APriority: Dec 13, 1993Filed: Dec 13, 1993Granted: Mar 7, 1995
Est. expiryDec 13, 2013(expired)· nominal 20-yr term from priority
Inventors:William A. Russell
44
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5
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4
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1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a parabolic listening device, as shown and described.

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