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3683921
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Information
Patent Grant
3683921
References
Source
Patent Number
3,683,921
Date Filed
Not available
Date Issued
Tuesday, August 15, 1972
52 years ago
CPC
B32B37/1292 - selectively
A61F13/00029 - made of multiple layers
A61F13/15699 - Forming webs by bringing together several webs
A61L15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds Derivatives thereof
D04H1/488 - in combination with bonding agents
D04H1/495 - for formation of patterns
D04H1/498 - entanglement of layered webs
D04H1/593 - to layered webs
A61F13/534 - having an inhomogeneous composition through the thickness of the pad
A61F2013/00744 - containing non-woven
A61F2013/53445 - from several sheets
A61F2013/53958 - with separate adhesive layer
Y10T442/671 - Multiple nonwoven fabric layers composed of the same polymeric strand or fiber material
US Classifications
604 - Surgery
442 - Fabric
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