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Dressing mill discs or rollers
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Industry
CPC
B28D3/00
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B28
Stoneworking
B28D
WORKING STONE OR STONE-LIKE MATERIALS
Current Industry
B28D3/00
Dressing mill discs or rollers
Sub Industries
B28D3/005
Tools therefor
B28D3/02
Machines
B28D3/04
for grooving rollers
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Patents Grants
last 30 patents
Information
Patent Grant
2191764
Patent number
2,191,764
Issue date
Feb 27, 1940
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
1488235
Patent number
1,488,235
Issue date
Mar 25, 1924
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
1340589
Patent number
1,340,589
Issue date
May 18, 1920
B28 - WORKING CEMENT, CLAY, OR STONE
Patents Applications
last 30 patents