Abstract

An optical interferometer and ultrasonic distance measuring subsystem for surface spectra.

Inventors

Charles L. Dumoulin
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Patent Details

Patent Number: US 5285260 A

Filing Date: 1992-07-06

Publication Date: 1994-02-08

Status: Expired – Lifetime

Current Assignee: SABIC Global Technologies BV / General Electric Co

Applicants: General Electric Co.

IPC/CPC Classifications: G01N21/25;;G01B17/04;;G01N

Patent Attorney
Lawrence P. Zale

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