Process for the manufacture of semi-finished polychrome composites from thin gage metals, and a semi-finished composite obtained with such a process
YU38386A
Process for obtaining hollow elements, composed of longitudinal different coloured hollow tapes or with internal heart which can be pulled out, product obtained by this process and machine for executing this process
DE3541209A1
Machine for producing necklaces and ornamental gold chains
DE3533637A1
METHOD AND DEVICE FOR THE AUTOMATIC ORNAMENTATION OF SCREW AREAS AND / OR LINKS FOR THE PRODUCTION OF LINKABLE GOLD FABRIC AND JEWELRY GOODS
DE3533638A1
METHOD AND DEVICE FOR THE AUTOMATIC PROCESSING / DECORATION OF PREDICTED SECTIONS OF LENGTH ELEMENTS FROM WHICH GOLD MOLDING AND JEWELERY GOODS ARE MANUFACTURED
