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Apparatus for handling and assembling axial electronic components on printed circuit cards
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Method of producing an essentially wire-type semi-finished product for manufacturing jewellery, and device for carrying out the method
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Photoelectric direction finding and luminous zone tracking
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Machine for automatically preparing and introducing closure sliders inside annular hollow members for producing annular spring safety catches for necklaces, bracelets and the like
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Rotating sliding wire catches for necklaces - are assembled on two rotating tables with four working stations on each table
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Process for obtaining surfaces with a nacre like effect ongold or silver articles
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Programmed jewelry chains mfr. system - has two feed mechanisms for wire and gripping device moving between two positions
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Programmed jewelry chains mfr. system - has two feed mechanisms for wire and gripping device moving between two positions
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Machine and method for constructing a chain having automatically shaped and welded chain links
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Stamp for sheet metal chain links - has cross formation links with opposite arms bent in loops encircling adjacent link
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Winding machine friction clutch - incorporates idling arrangement permitting driven part slow movement and prevents faster inertia running
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Process for producing articles of jewelry, trinketry and the like, made of metals of different colors
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Clasp ring spring prodn. machine - features rotatable turntable with four 90 degree displaced work stations
