Ronald D. Edhlund

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Mount Prospect, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making pressure-sensitive transfer sheets
- Patent number 4,282,310
- Issue date Aug 4, 1981
- American Photo-Graphics Corporation
- Ronald D. Edhlund
- B44 - DECORATIVE ARTS
Information Patent Grant
Method of making hand proofs of color prints
- Patent number 4,258,125
- Issue date Mar 24, 1981
- Ronald D. Edhlund
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Font element for photocomposing machine
- Patent number 4,121,229
- Issue date Oct 17, 1978
- American Photo-Graphics Corporation
- Ronald D. Edhlund
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method and apparatus for preparing film for exposure with a film font
- Patent number 4,065,990
- Issue date Jan 3, 1978
- American Photo-Graphics Corporation
- Ronald D. Edhlund
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Decalcomania image transfer system
- Patent number 4,044,181
- Issue date Aug 23, 1977
- Ronald D. Edhlund
- B44 - DECORATIVE ARTS