Machines not elsewhere specified – Refrigeration machinery and apparatus
Design Patent
2002-05-29
2003-03-11
Siegel, Mitchell (Department: 2912)
Machines not elsewhere specified
Refrigeration machinery and apparatus
Design Patent
active
D0471567
CLAIM:
The ornamental design for an apparatus for treating an item during travel of the item along a spiral trough, as shown and described.
REFERENCES:
patent: 3938651 (1976-02-01), Alfred et al.
patent: 5078120 (1992-01-01), Hwang
patent: 5109758 (1992-05-01), Voegtlin
Mallinckrodt Robert R.
Mallinckrodt & Mallinckrodt
Siegel Mitchell
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