Alfred R. Mack

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Bayonne, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement for securing in a slide plate hold-down spring in a sew...
- Patent number 4,444,139
- Issue date Apr 24, 1984
- The Singer Company
- Walter H. W. Marsh
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Feed regulating mechanism for a sewing machine
- Patent number 4,145,983
- Issue date Mar 27, 1979
- The Singer Company
- Joseph P. Law
- D05 - SEWING EMBROIDERING TUFTING
Information Patent Grant
Arm top cover hinge for sewing machines
- Patent number 4,129,922
- Issue date Dec 19, 1978
- The Singer Company
- Joseph P. Law
- D05 - SEWING EMBROIDERING TUFTING