| http://www.w3.org/ns/prov#value | - Patent US5283697 - Passive protection of optically sensitive materials with tarnsition-metal ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsOptically sensitive materials such as sensors or the human eye are passively protected against overexposure to high intensity lig GOVERNMENT RIGHTS This invention was made with Government support
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