Inventor
RISS GERHARD
DE7 patents
⚠️ This page may combine multiple inventors who share the name “RISS GERHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DUERKOPPWERKE
5 patentsUS4919061AApr 24, 1990
Button-hole sewing machine having a thread cutting and clamping device
DUERKOPPWERKE8 citations70
US4714034ADec 22, 1987
Button feeding device for button attaching machines
DUERKOPPWERKE10 citations65
US4131074ADec 26, 1978
Method of and apparatus for the sewing of a multiplicity of stitch groups in a workpiece
DUERKOPPWERKE4 citations59
US4148268AApr 10, 1979
Method of and apparatus for the production of button-holes on a double lock stitch buttonhole sewing machine
DUERKOPPWERKE1 citations51
US5019116AMay 28, 1991
Sewing machine apparatus for the succesive production of a number of stitch groups in a workpiece
DUERKOPPWERKE0 citations38