Schwarzel; William C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schwarzel; William C..The latest application filed is for "lithographic printing plates with dispersed rubber additives".
- Schwarzel; William C. - Billerica MA
| Patent | Date |
|---|---|
| Lithographic printing plates with dispersed rubber additives Grant 5,616,449 - Cheng , et al. April 1, 1 | 1997-04-01 |
| Photoreaction quenchers in on-press developable lithographic printing plates Grant 5,599,650 - Bi , et al. February 4, 1 | 1997-02-04 |
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