B63H 21/20
Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
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Edits on 15 Mar, 2022
Golden AI
Edits on 8 Mar, 2022
Golden AI
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Description (+130 characters)
B63H 21/20
Use of propulsion power plant or units on vessels the vessels being powered by combinations of different types of propulsion units
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