EP 3 800 007 A1 EUROPEAN SEARCH REPORT Application Number EP 20 19 9595 Europäisches Patentamt European p‘ a DE des brevets’ 5 10 15 20 25 30 35 40 45 50 55 Ke EPO FORM 1503 03.82 (PO4C01) DOCUMENTS CONSIDERED TO BE RELEVANT x US 5 454 194 A (GOTTSCHALD LUTZ [DE]) INV. October 1995 (1995-10-03) B24B9/14 claims 1,2; figure 1 * B24B51/00 * * column 4, lines 6-16 * B24B27/00 * column 4, line 56 - column 6, line 31 * CN 105 437 019 B (RORING IND (XIAMEN) LTD) 20 October 2017 (2017-10-20) * abstract; claim 1; figures 1,2 * WO 2016/186060 Al (LIFE ROBOTICS INC [JP]) 24 November 2016 (2016-11-24) * abstract; figure 1 * JP 2003 200337 A (TOPCON CORP) 15 July 2003 (2003-07-15) * paragraphs [0016], [0021] - [0023]; figures 1-4 * CN 109 500 690 A (UNIV CHONGQING TECHNOLOGY) 22 March 2019 (2019-03-22) TECHNICAL FIELDS * claims 1-8; figure 1 * SEARCHED (PC) B24B CN 109 773 617 A (DONGGUAN LIBO COSMETICS CO LTD) 21 May 2019 (2019-05-21) * claims 1,2; figures 1,2 * Place of search Date of completion of the search Examiner Munich 12 February 2021 Herrero Ramos, J CATEGORY OF CITED DOCUMENTS T : theory or principle underlying the invention E: earlier patent document, but published on, or X: particularly relevant if taken alone after the filing date Y : particularly relevant if combined with another D : document cited in the application document of the same category L : document cited for other reasons A: technological background ©: non-written disclosure & : member of the same patent family, corresponding P : intermediate document document 28