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| Outside shape patent 1 |
Outside shape patent 2 |
Outside shape patent 3 |
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| Handle patent 1 |
Handle patent 2 |
Handle patent 3 |
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| Handle patent 4 |
Handle patent 5 |
Handle patent 6 |
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| Handle patent 7 |
Transmission patent 1 |
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| Transmission patent 3 |
Transmission patent 4 |
Transmission patent 5 |
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| Transmission patent 6 |
Transmission patent 7 |
Transmission patent 8 |
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