Fluid containing string with opening to pass fluid from core

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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Details

273 29R, 273 29A, 273 73R, 428377, 428394, 428398, 428399, 428400, 57232, D07B 102

Patent

active

044991444

ABSTRACT:
This invention relates to a string for sports rackets which comprises a core (1), the core being constituted by one or more synthetic polymeric monofilaments, the, or at least one of the monofilaments having a longitudinal bore (2), and, along the length of the bore, one or more openings (3) for the passage of fluid from the bore, the core being covered by a wrapping (9,10) of synthetic polymeric material (FIGS. 7 and 8).

REFERENCES:
patent: 1991893 (1935-02-01), Flick et al.

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