Kramer & Grebe Canada, Ltd.

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Waterloo, CA

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Method and apparatus for producing resealable packages
- Patent number 4,969,309
- Issue date Nov 13, 1990
- Kramer & Grebe Canada, Ltd.
- Gunther Schwarz
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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