- CEA Instruments Inc.
- Colormetric Laboratories Inc.
- Connecticut Valley Biological
- Edvotek Inc.
- Geno Technology Inc.
- Hemco Corp.
- Hybaid Ltd.
- Labconco Corp.
- Lab Safety Supply Inc.
- Matheson Gas Products Inc.
- New Pig Corp.
- North Safety Products Inc.
- NuAire Inc. Card
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