Matches 1 - 2 out of 2
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7247026 Practice device to enable children to simulate skateboarding  
A practice device to enable children to simulate skateboarding in a safe manner so the children can practice sliding the practice device on a surface and balancing themselves on the device. The...
5107906 System for fast-filling compressed natural gas powered vehicles  
A method of refueling a road transportation vehicle or the like comprising receiving and storing liquid natural gas in a relatively large supply tank at relatively low temperature and moderate...
Matches 1 - 2 out of 2