Knob hole sewing machine with sewing material backstop
A buttonhole sewing machine (1) has a workpiece (44) stopper (54), a supporting board (17) for the workpiece (44) having a hole (18) for moving up and down a sewing needle (11), and a clamp for pressing the workpiece (44) to the supporting board (17). The stopper (54) is connected to the supporting...
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Format: | Patent |
Sprache: | chi ; eng |
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