James W. Wolff

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Sewing machine looper throw-out mechanism
- Patent number 4,671,195
- Issue date Jun 9, 1987
- Union Special Corporation
- James W. Wolff
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Sewing machine lubrication system
- Patent number 4,587,912
- Issue date May 13, 1986
- Union Special Corporation
- James W. Wolff
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Method and apparatus for retarding oil leakage in a sewing machine
- Patent number 4,522,136
- Issue date Jun 11, 1985
- Union Special Corporation
- James W. Wolff
- D05 - SEWING EMBROIDERING TUFTING