Calibration spiral to improve guide spiral placement | Patent Number 09947356
US 09947356 B1Filled DateMar 9, 2017
Priority DateMar 9, 2017
Publication Date-
Expiration DateMar 8, 2037
Inventor/ApplicantsRichard Oswald
Gabor Szita
Li Zhang
Gabor Szita
Li Zhang
ExaminesWONG, KIN C
Art Unit2688
Technology Center2600
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