Linkage device provided with four screw propellers

The invention relates to a linkage device provided with four screw propellers. The linkage device comprises a power device, wherein the power device is connected with a first drive rod through a drive device, the first drive rod is connected with a second drive rod through a universal coupling, each...

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Bibliographische Detailangaben
1. Verfasser: KE MINGSHENG
Format: Patent
Sprache:eng
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