Number | Name | Date | Kind |
---|---|---|---|
D142841 | D'Algondt | Nov 1945 | |
D254928 | Mathis | May 1980 | |
D261419 | Moreland | Oct 1981 | |
1996279 | Dillon | Apr 1935 | |
4359790 | Chalberg | Nov 1982 | |
4505814 | Marshall | Mar 1985 |
Entry |
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Hydo Air Industries, Inc. display (admitted prior art) poster illustrating a guard for water suction pipe, encircled. |