Inventor
ZENGER ALFRED JOHN
4 patents
Patents
4 patentsUS4104976AAug 8, 1978
Programmable sewing machine
SINGER CO65 citations93
US4100865AJul 18, 1978
Programmable sewing machine operable in a plurality of modes
SINGER CO29 citations79
US4092937AJun 6, 1978
Automatic stitching by programmable sewing machine
SINGER CO30 citations79
US4095540AJun 20, 1978
Sewing machine stitch regulating mechanisms
SINGER CO12 citations65