Roger R. Hermelin

Follow

Person

Olivet, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for the application of polymer films on a support
- Patent number 4,116,749
- Issue date Sep 26, 1978
- Bureau de Recherches Geologiques et Minieres
- Jacques L. Dufort
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polychromic reproduction procedure using strippable masks
- Patent number 4,108,549
- Issue date Aug 22, 1978
- Bureau de Recherches Geologiques et Minieres
- Roger R. Hermelin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS