Ralph Alexander Betts

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Randwick, AU

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Patents Grantslast 30 patents

Information Patent Grant
Split-beam Fourier filter
- Patent number 5,930,441
- Issue date Jul 27, 1999
- Phontonic Technologies Pty Ltd
- Ralph Alexander Betts
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Fibre coupled mirror providing a wavelength independent rotation of...
- Publication number 20020071624
- Publication date Jun 13, 2002
- Nortel Networks (Photonics) PTY LTD.
- Steven James Frisken
- G02 - OPTICS