Boots – shoes – and leggings
Patent
1992-07-30
1993-11-02
Black, Thomas G.
Boots, shoes, and leggings
364576, 36441325, 73602, 382 4, G06K 900, G01N 2900
Patent
active
052589226
ABSTRACT:
A method and device for determining surface structure and subsurface structures wherein the article to be examined is placed upon a support surface and through a liquid or solid medium ultrasonic waves are directed at the surface and backscattered waves are received and processed. The frequency of the ultrasonic waves is selected to provide information of the subsurface structure to a depth of substantially one wavelength.
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Auchterlonie Thomas S.
Bicz Wieslaw
Black Thomas G.
Dubno Herbert
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