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Title:
ELECTRONICALLY CONTROLLED SEWING MACHINE
Document Type and Number:
Japanese Patent JPS59120194
Kind Code:
A
Abstract:
An optical switching system for one step buttonholing substantially eliminates false triggering when an operator inadvertently moves an object within the viewing path of the optical sensor by utilizing signals from the sensors only when the sewing machine is running.

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Inventors:
UORUTAA ETSUCHI DABURIYU MAASH
Application Number:
JP23412683A
Publication Date:
July 11, 1984
Filing Date:
December 12, 1983
Export Citation:
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Assignee:
SINGER CO
International Classes:
D05B3/06; D05B19/12; (IPC1-7): D05B3/02; D05B3/06
Domestic Patent References:
JPS5685386A1981-07-11
JPS56121582A1981-09-24
Attorney, Agent or Firm:
Akira Asamura (3 outside)



 
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