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Mark D. Doublin
Fullerton, CA
US
9 patents
8 Patents
USD1125704
2026
Helmet
Bell Sports, Inc.
0 cites
USD1100360
2025
Helmet
Bell Sports, Inc.
0 cites
USD1100359
2025
Helmet
Bell Sports, Inc.
0 cites
USD1063221
2025
Helmet
Bell Sports, Inc.
0 cites
USD1004851
2023
Unicorn Helmet
Bell Sports, Inc.
0 cites
USD1003519
2023
Unicorn LED Helmet
Bell Sports, Inc.
0 cites
USD1003520
2023
Unicorn Helmet
Bell Sports, Inc.
0 cites
USD1003521
2023
Unicorn Helmet
Bell Sports, Inc.
0 cites