Donald J. Hemmelgarn

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Minster, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing ovenable paperboard articles
- Patent number 4,534,725
- Issue date Aug 13, 1985
- International Paper Company
- Donald J. Hemmelgarn
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Linear bearing arrangement
- Patent number 4,376,556
- Issue date Mar 15, 1983
- Raymond A. Bergman
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Retracting bolster for a press
- Patent number 4,206,699
- Issue date Jun 10, 1980
- The Minster Machine Company
- Donald J. Hemmelgarn
- B30 - PRESSES
Information Patent Grant
Lock mechanism for press shutheight adjustment
- Patent number 4,206,701
- Issue date Jun 10, 1980
- The Minster Machine Company
- Donald J. Hemmelgarn
- B30 - PRESSES