Precise positioner of buttonhole presser foot

For a zigzag sewing machine having a buttonhole presser device allowing formation of a buttonhole in a single step, a method for insuring that the presser device is in its initiating position by determining where the movable portion of the presser device is and, if it is not in its correct position,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PEPE, RUSSELL J, DOB, ALLAN M, BECKERMAN, HOWARD L
Format: Patent
Sprache:eng
Schlagworte:
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