2.1. To produce drilled holes to a defined depth, drills can be used which have a depth stop on the shank. …<??>2.2. To avoid damage to the wall surface when the depth stop bears against it, a depth stop with an elastic damping element is proposed. …<IMAGE>…
申请公布号
DE3907088(A1)
申请公布日期
1990.11.08
申请号
DE19893907088
申请日期
1989.03.04
申请人
FISCHER-WERKE ARTUR FISCHER GMBH & CO KG, 7244 WALDACHTAL, DE
发明人
FISCHER, ARTUR, PROF. DR.H.C., 7244 WALDACHTAL, DE;HAUG, WILLI, 7290 FREUDENSTADT, DE