John D. Rolfe

Follow

Person

Bristol, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for handling leaves of sheet material
- Patent number 4,948,114
- Issue date Aug 14, 1990
- DRG (UK) Limited
- Kenneth A. Bowman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Printing roll with detachable sleeves and kit therefor
- Patent number 4,583,460
- Issue date Apr 22, 1986
- DRG (UK) Limited
- Roger F. Maslin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS