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CPC
B64C2700/6205

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BPERFORMING OPERATIONS TRANSPORTING B64Aviation B64CAEROPLANES HELICOPTERS B64C2700/00Codes corresponding to the former IdT classification

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B64C2700/6205Protection means

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Patents Grantslast 30 patents

Information Patent Grant
2885505
- Patent number 2,885,505
- Issue date May 5, 1959
- B64 - AIRCRAFT AVIATION COSMONAUTICS