4. Sewing
  5. Elements
  6. Bobbin winding

Patrice J. Kemmel

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Low thread supply monitor in a sewing machine

Sewing – Elements – Thread sensing
Patent

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Pulse generator for variable-speed drives

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Sewing machine with a spooling mechanism

Sewing – Elements – Bobbin winding
Patent

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Sewing machine with a universal motor

Electricity: motive power systems – Alternating current commutating motors – Universal or a.c.-d.c. motors
Patent

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Speed control device for a home sewing machine

Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent

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Profile ID: LFUS-PAI-P-1088110

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