Textiles: spinning – twisting – and twining – Strand structure – Covered or wrapped
Patent
1985-07-22
1987-04-28
Watkins, Donald
Textiles: spinning, twisting, and twining
Strand structure
Covered or wrapped
57210, 57251, D02G 322, D02G 340, D02G 344
Patent
active
046603646
ABSTRACT:
Athletic racket string construction consisting of a seven strand core and an outer layer of wrapping fibers.
REFERENCES:
patent: 2181475 (1939-11-01), Bourbon
patent: 3605399 (1971-09-01), Rijswik et al.
patent: 3745756 (1973-07-01), Crandall
patent: 4016714 (1977-04-01), Crandall et al.
patent: 4275117 (1981-06-01), Crandall
patent: 4530206 (1985-07-01), Benichou et al.
Alpha Sports, Inc.
Watkins Donald
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