Manhole lift insert with frangible positioner

Details Manhole lift insert with frangible positioner Manhole lift insert with frangible positioner

2003-06-26

2004-11-09

Greene, Paula A. (Department: 2912)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0498131

CLAIM:
The ornamental design for a manhole lift insert with frangible positioner, as shown and described.

REFERENCES:
patent: 3930428 (1976-01-01), Hale
patent: D298605 (1988-11-01), Colgan et al.
patent: 5097686 (1992-03-01), Plumer
patent: D356493 (1995-03-01), Holzapfel et al.
patent: 5426963 (1995-06-01), Tafoya et al.
patent: D398823 (1998-09-01), Hsieh
patent: D410190 (1999-05-01), Freck
patent: D421707 (2000-03-01), Gregory
patent: D446111 (2001-08-01), Hussaini
patent: D467787 (2002-12-01), Linares

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