Holmberg; Roy
Patent Applications and Registrations
Patent applications and USPTO patent grants for Holmberg; Roy.The latest application filed is for "corrugated metal sheet contact body for humidifiers".
- Holmberg; Roy - Jonkoping SE
| Patent | Date |
|---|---|
| Corrugated metal sheet contact body for humidifiers Grant D254,506 - Holmberg March 18, 1 | 1980-03-18 |
| Corrugated metal sheet contact body for humidifiers Grant D254,207 - Holmberg February 12, 1 | 1980-02-12 |
| Method for heat recovery in ventilation installations Grant 3,968,833 - Strindehag , et al. July 13, 1 | 1976-07-13 |
| Contact body for cooling towers Grant 3,963,810 - Holmberg , et al. June 15, 1 | 1976-06-15 |
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