US PATENT SUBCLASS 57 / 256
.~.~.~ With natural fibers
Current as of:
June, 1999
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57 /
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TEXTILES: SPINNING, TWISTING, AND TWINING
200
DF
STRAND STRUCTURE
{11}
252
DF
.~ Staple fiber blends {4}
255
DF
.~.~ Synthetic material {1}
256
.~.~.~ With natural fibers
DEFINITION
Classification: 57/256
With natural fibers:
(under subclass 255) Subject matter wherein the strand
includes staple fibers of both synthetic and natural materials.