Chainless pram
The utility model discloses a chainless pram, which is the improvement of the existing pram. The utility model has no chain which is changed from the existing pram with the chain, a flywheel drive part is arranged in a centre shaft and a centre shaft gear, and a back shaft gear and a flower drum bar...
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Main Author | |
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Format | Patent |
Language | English |
Published |
26.01.2000
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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