Johan K. Rademaker

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West Olive, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Vent cap
- Patent number D403752
- Issue date Jan 5, 1999
- Hart & Cooley, Inc.
- Johan K. Rademaker
- D23 - Environmental heating and cooling
Information Patent Grant
Combined ceiling diffuser and air deflector pendulum for providing...
- Patent number D331102
- Issue date Nov 17, 1992
- Hart & Cooley, Inc.
- Johan K. Rademaker
- D23 - Environmental heating and cooling