3 ms·
they have patented the valve that attaches the mask to the oxygen supply. this prevents someone else patenting it. you still need to buy the masks but these wil
by celticninja 7y ago
they have patented the valve that attaches the mask to the oxygen supply. this prevents someone else patenting it. you still need to buy the masks but these will already be in stock at decathlon stores.
- cma 7y agoPublishing already prevents that in most areas, but I guess that could lessen the chance you would have to challenge it.