Flat material hold-down device

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

Design Patent

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Design Patent

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D0527621

CLAIM:
The ornamental design for a flat material hold-down device, as shown and described.

REFERENCES:
patent: D164994 (1951-10-01), Johannsen
patent: D230218 (1974-01-01), Frelling
patent: D253389 (1979-11-01), South, Jr.
patent: 4699165 (1987-10-01), Barzana
patent: 4903922 (1990-02-01), Harris, III
patent: D314493 (1991-02-01), Keane
patent: 5366327 (1994-11-01), Nelson
patent: D377076 (1996-12-01), Adams
patent: D402863 (1998-12-01), Hickmott
patent: D413978 (1999-09-01), Masson
patent: D424960 (2000-05-01), Greene et al.

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