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Tractor Plow Co., Inc.
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Stockton, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Roll-over disc plow
Patent number
4,640,367
Issue date
Feb 3, 1987
Tractor Plow Co., Inc.
Ventura J. Lawrence
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING