Slingerland, Jr.; Henry H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Slingerland, Jr.; Henry H..The latest application filed is for "rotatable stand".
- Slingerland, Jr.; Henry H. - Wilmette IL
| Patent | Date |
|---|---|
| Rotatable stand Grant 4,117,627 - Slingerland, Jr. October 3, 1 | 1978-10-03 |
| Drum Holder Grant 3,576,149 - Slingerland, Jr. April 27, 1 | 1971-04-27 |
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