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BECKER DRILLS LIMITED
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CALGARY, ALBERTA, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Hammer drill bit and sub-assembly
Patent number
4,739,844
Issue date
Apr 26, 1988
Becker Drills, Inc.
Oscar E. Farris
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74129255 - BECKER DRILLS INC.
Serial number
74129255
Registration number
1711172
Filing date
Jan 10, 1991
BECKER DRILLS INCORPORATED
7 - Machines and machine tools
Information
Trademark
72346209 - BECKER B
Serial number
72346209
Registration number
905847
Filing date
Dec 15, 1969
BECKER DRILLS LIMITED
7 - Machines and machine tools