Dahlgren Duplicator Sales, Inc.

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Marietta, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Swing away color head for offset duplicator
- Patent number 4,932,322
- Issue date Jun 12, 1990
- Dahlgren Duplicator Sales, Inc.
- James J. Keller
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Swing-away colorhead for offset duplicator
- Patent number 4,896,599
- Issue date Jan 30, 1990
- Dahlgren Duplicator Sales, Inc.
- James J. Keller
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS