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Erwin Kaestner
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Cincinnati, OH, US
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last 30 patents
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Patent Grant
Mobile perpetually self-correcting estimated time of arrival calcul...
Patent number
4,153,874
Issue date
May 8, 1979
Erwin A. Kaestner
G01 - MEASURING TESTING
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Patent Grant
Bio-rhythm calculator
Patent number
4,059,952
Issue date
Nov 29, 1977
Erwin Kaestner
G04 - HOROLOGY