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Precision Grinding, Inc.
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Bessemer, AL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for use in monitoring a plurality of variable parameters
Patent number
4,551,795
Issue date
Nov 5, 1985
Precision Grinding Limited
John H. Fisher
G02 - OPTICS
Information
Patent Grant
Arrangement for use in positioning an optical image
Patent number
4,525,041
Issue date
Jun 25, 1985
Precision Grinding Limited
Stanley W. Andrews
G02 - OPTICS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
88921004 - PGI STEEL
Serial number
88921004
Registration number
6404879
Filing date
May 18, 2020
Precision Grinding, Inc.
40 - Treatment of materials
Information
Trademark
88903863 - PGI STEEL
Serial number
88903863
Registration number
6404803
Filing date
May 6, 2020
Precision Grinding, Inc.
40 - Treatment of materials
Information
Trademark
72232344 - PROJECTORSCOPE
Serial number
72232344
Registration number
837091
Filing date
Nov 8, 1965
Precision Grinding Limited
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72147851 - OPTIDRESS
Serial number
72147851
Registration number
749765
Filing date
Jun 27, 1962
Precision Grinding Limited
7 - Machines and machine tools