4. Radiant energy
  5. Photocells; circuits and apparatus
  6. Optical or pre-photocell system

Gustav Rohr

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Device for detecting an overlapping edge of material on a sewing

Sewing – Elements – Starting or stopping
Patent

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Device for determining the angular position of the drive shaft i

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

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Electric motor drive for a sewing machine, especially an industr

Sewing – Elements – Driving mechanisms
Patent

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Rotary speed ratio control for a multiple rotary drive system fo

Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Running-speed control
Patent

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Profile ID: LFUS-PAI-P-1017340

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