Pipes and tubular conduits – Plural duct – Longitudinally extending common wall
Patent
1978-12-26
1983-11-15
Footland, Lenard A.
Pipes and tubular conduits
Plural duct
Longitudinally extending common wall
F16L 1112
Patent
active
044150067
ABSTRACT:
A marker sleeve (1, 1A, 15, 20, 30, 40, 50 or 60) having an outer wall (2) defining a tubular body and at least one inner web (3, 4, 16, 21-23, 31-34, 42, 52 or 62) extending longitudinally of the tubular body. An inner web is spaced from its overlying outer wall portion along a longitudinally extending aperture (5, 18, 25, 35, 41, 51 or 61). The marker sleeve is to be positioned about an article which extends through its tubular body.
REFERENCES:
patent: 3487574 (1970-01-01), Loof
patent: 3534777 (1970-10-01), Loof
Footland Lenard A.
W. H. Brady Co.
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