Normal winding of clockworks by hand or mechanically: by mechanical means

Official title: by mechanical means, e.g. pneumatic motor (winding up with electric or electromechanical means G04C {; liquid or gas driving mechanisms G04B1/26; automatic winding up by wind power G04B5/203})

G04B3/12 (Normal winding of clockworks by hand or mechanically: by mechanical means) appears on 1 US grants and 1 published applications in this corpus.