Patent classifications
A
HUMAN NECESSITIES
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A01
AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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A01B
SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
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59/00
Devices specially adapted for connection between animals or tractors and agricultural machines or implements
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A01B59/04
for machines pulled or pushed by a tractor
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A01B59/041
preventing or limiting side-play of implements
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A01B59/0415
by hydraulic or pneumatic means acting on the lower draft links
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