The patents for this should be expired by now?
4K4K1K0 1 year ago
@4K4K1K0 of course - everybody could build it, but all are afraid ...
InventorWillimczik 1 year ago
The patents for this should be expired by now?
4K4K1K0 1 year ago
@4K4K1K0 of course - everybody could build it, but all are afraid ...
InventorWillimczik 1 year ago