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Improvements to a device for control by ultrasonic echo: Branson Instruments Inc , French Patent 1, 548, 933 (1968) (Applied for 18 December 1967)

Publisher: Elsevier Science
Year: 1969
Tongue: English
Weight: 190 KB
Volume: 7
Category: Article
ISSN: 0041-624X
DOI: 10.1016/0041-624x(69)90702-1

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