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[http://w140.com/US4931704.pdf US Patent 4931704]<br> | [http://w140.com/US4931704.pdf US Patent 4931704]<br> | ||
[http://w140.com/US4956548.pdf US Patent 4956548]<br> | [http://w140.com/US4956548.pdf US Patent 4956548]<br> | ||
[[Category:Micro-channel plate CRTs]] |