| 4439663 |
Method and system for laser perforation of sheet material |
A. Clifton Lilly, Jr., Warren E. Claflin, Ulysses A. Brooks, Peter Martin |
1984-03-27 |
| 4410785 |
Method and apparatus for perforation of sheet material by laser |
A. Clifton Lilly, Jr., Warren E. Claflin, Ulysses A. Brooks, Peter Martin |
1983-10-18 |
| 4349719 |
Apparatus for laser perforation of transported articles |
Ernest Cashwell, Everett C. Grollimund, Walter W. Duley, A. Clifton Lilly, Jr., Warren E. Claflin +1 more |
1982-09-14 |
| 4246775 |
Porosity measuring apparatus and perforating system using same |
— |
1981-01-27 |
| 4224497 |
Method for making filter cigarettes using light energy to make perforations in the filter tipping wrap |
Walter W. Duley, A. Clifton Lilly, Jr., Warren E. Claflin, Peter Martin |
1980-09-23 |
| 4224498 |
Apparatus for perforating articles by laser |
Everett C. Grollimund, Walter W. Duley, A. Clifton Lilly, Jr., Warren E. Claflin, Peter Martin |
1980-09-23 |