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CPC
B21B47/02
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B21
Mechanical metalworking
B21B
ROLLING OF METAL
B21B47/00
Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal
Current Industry
B21B47/02
for folding sheets before rolling
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Patents Grants
last 30 patents
Information
Patent Grant
2259700
Patent number
2,259,700
Issue date
Oct 21, 1941
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
2084705
Patent number
2,084,705
Issue date
Jun 22, 1937
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
2027713
Patent number
2,027,713
Issue date
Jan 14, 1936
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
2020939
Patent number
2,020,939
Issue date
Nov 12, 1935
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1839333
Patent number
1,839,333
Issue date
Jan 5, 1932
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1839334
Patent number
1,839,334
Issue date
Jan 5, 1932
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1761248
Patent number
1,761,248
Issue date
Jun 3, 1930
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1739249
Patent number
1,739,249
Issue date
Dec 10, 1929
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1724715
Patent number
1,724,715
Issue date
Aug 13, 1929
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1718392
Patent number
1,718,392
Issue date
Jun 25, 1929
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1696097
Patent number
1,696,097
Issue date
Dec 18, 1928
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1691250
Patent number
1,691,250
Issue date
Nov 13, 1928
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1674478
Patent number
1,674,478
Issue date
Jun 19, 1928
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1671221
Patent number
1,671,221
Issue date
May 29, 1928
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1617880
Patent number
1,617,880
Issue date
Feb 15, 1927
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1561973
Patent number
1,561,973
Issue date
Nov 17, 1925
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1553032
Patent number
1,553,032
Issue date
Sep 8, 1925
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1546039
Patent number
1,546,039
Issue date
Jul 14, 1925
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1535876
Patent number
1,535,876
Issue date
Apr 28, 1925
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1525820
Patent number
1,525,820
Issue date
Feb 10, 1925
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1469846
Patent number
1,469,846
Issue date
Oct 9, 1923
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1448442
Patent number
1,448,442
Issue date
Mar 13, 1923
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1434470
Patent number
1,434,470
Issue date
Nov 7, 1922
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1427804
Patent number
1,427,804
Issue date
Sep 5, 1922
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1355720
Patent number
1,355,720
Issue date
Oct 12, 1920
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
1152759
Patent number
1,152,759
Issue date
Sep 7, 1915
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
964701
Patent number
964,701
Issue date
Jul 19, 1910
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
602273
Patent number
602,273
Issue date
Apr 12, 1898
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
518197
Patent number
518,197
Issue date
Apr 10, 1894
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
445202
Patent number
445,202
Issue date
Jan 27, 1891
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents