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Ultrasonic testing
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Patent number 4,611,495
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Issue date Sep 16, 1986
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BCIRA
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Peter J. Emerson
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G01 - MEASURING TESTING
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Apparatus for recording echo pulses
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Patent number 4,226,122
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Issue date Oct 7, 1980
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Akademiet for de Tekniske Videnskaber, Svejsecentralen
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Svend A. Lund
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G01 - MEASURING TESTING
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3739363
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Patent number 3,739,363
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Issue date Jun 12, 1973
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G01 - MEASURING TESTING
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3712119
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Patent number 3,712,119
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Issue date Jan 23, 1973
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G01 - MEASURING TESTING
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3575044
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Patent number 3,575,044
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Issue date Apr 13, 1971
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G01 - MEASURING TESTING
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3570279
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Patent number 3,570,279
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Issue date Mar 16, 1971
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G01 - MEASURING TESTING
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3548641
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Patent number 3,548,641
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Issue date Dec 22, 1970
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G01 - MEASURING TESTING
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3543229
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Patent number 3,543,229
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Issue date Nov 24, 1970
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3518697
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Patent number 3,518,697
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Issue date Jun 30, 1970
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G01 - MEASURING TESTING
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3432661
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Patent number 3,432,661
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Issue date Mar 11, 1969
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G01 - MEASURING TESTING
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3410643
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Patent number 3,410,643
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Issue date Nov 12, 1968
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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3368918
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Patent number 3,368,918
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Issue date Feb 13, 1968
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G01 - MEASURING TESTING
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3313146
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Patent number 3,313,146
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Issue date Apr 11, 1967
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G01 - MEASURING TESTING
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3287963
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Patent number 3,287,963
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Issue date Nov 29, 1966
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G01 - MEASURING TESTING
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3225136
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Patent number 3,225,136
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Issue date Dec 21, 1965
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G01 - MEASURING TESTING
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3036151
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Patent number 3,036,151
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Issue date May 22, 1962
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G01 - MEASURING TESTING