Inventor
COUGHENOUR DONALD J
US3 patents
Patents
3 patentsUS4163158AJul 31, 1979
Sewing machine bobbin thread run-out alarm using reflected light
SINGER CO18 citations71
US4184441AJan 22, 1980
Electronically controlled household sewing machine having patch sewing capability
SINGER CO7 citations70
US4215640AAug 5, 1980
Buttonhole stitch method
SINGER CO9 citations68