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Patent No. 5571247

Self Containing Enclosure for Protection from Killer Bees

A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.

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Assignee: Pan Communications, Inc.


Location: Tokyo, JP
No. of patents: 7

NumberTitleIssue Date
6272360Remotely installed transmitter and a hands-free two-way voice terminal device using same
A remotely installed transmitter capable of clearly picking up only the voice of a person who is talking despite being installed away from the speaker's mouth and without causing feedback despite increased sensitivity, and a hands-free two-way voice termi...
08/07/2001
5844984Two-way communications earset with filter
A two way voice communications earset which is situated in the ear of the user and which includes a filter in an audio signal loop coupling a microphone and a speaker of the earset....
12/01/1998
5751822Ambient noise suppression circuit
An ambient noise suppression electrical circuit to be used with a voice communication terminal comprising a gain control amplifier, whose input is a microphone, and a peak-hold circuit that includes a band-pass amplifier that amplifies a specified frequen...
05/12/1998
5664014Two-way communications earset
A one piece two way voice communications earset which is situated in or at the ear of the user and which includes either two unidirectional microphones having their outputs combined or a single bi-directional microphone. The earset also includes a combina...
09/02/1997
5606607Two-way communications earset
A one piece two way voice communications earset which is situated in or at the ear of the user and which includes either two unidirectional microphones having their outputs combined or a single bi-directional microphone....
02/25/1997
5448637Two-way communications earset
A one-piece two-way voice communication earset is situated in or at the ear of the user and is operated hands-free. It includes either two separated microphones having their outputs combined or a single bidirectional microphone. In either case, the earset...
09/05/1995
5282253Bone conduction microphone mount
A bone conduction microphone which fits into the ear of the user and which has means which abuts against the pinna of the ear causing a counteracting force to resiliently push the device against a wall of the ear canal nearest the back of the head, where ...
01/25/1994
 
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