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drifting tools
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Industry
CPC
B21K5/08
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B21
Mechanical metalworking
B21K
MAKING FORGED OR PRESSED METAL PRODUCTS
B21K5/00
Making tools or tool parts
Current Industry
B21K5/08
drifting tools
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Patents Grants
last 30 patents
Information
Patent Grant
1791035
Patent number
1,791,035
Issue date
Feb 3, 1931
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...