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JPS5034262

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DESCRIPTION JPS5034262
Patent Office Secretary 1, Title of Invention July 26, 1974 Difference sound source detector 3,
Patent applicant (1) Description 1-(2) Drawing, 1 ■ Japan Patent Office ■ Special昭 59-34262
Office serial number lad 、, 2? Description 1, title of the invention 1, title of the invention
2, same as inventor patent applicant
3. As a detailed explanation principle of the invention, it utilizes the straightness of sound, and it
is difficult to be detected by being absorbed by the sound wave material. How to use, this
direction of the tube in various directions, it is presumed that the direction of the sound source
with the direction that can hear the most.
4. Brief description of the drawings-The drawing is a view of the present invention. 1 is a tube. 2
is a sound absorbing material. 3 is a sound wave entrance hole. Where 4 detects sound waves 3
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03-05-2019
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