High speed 1-needle, lockstitch machine with cloth cutting knife
high speed 1-needle, lockstitch machine with cloth cutting knife(using the front knife method) (10 pages)
High-speed, 1-needle, cylinder-bed, needle-feed, lockstitch machine with large hook; high-speed, 1-needle, cylinder-bed, needle-feed, lockstitch machine with automatic thread trimmer and large hook (52 pages)
