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Robert Williams
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London, GB
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Patents Grants
last 30 patents
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Patent Grant
Double crossbow
Patent number
11,320,231
Issue date
May 3, 2022
Robert Wyn Williams
F41 - WEAPONS
Patents Applications
last 30 patents
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Patent Application
Double Crossbow
Publication number
20210164753
Publication date
Jun 3, 2021
Robert Wyn Williams
F41 - WEAPONS
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Patent Application
Double Crossbow
Publication number
20200292271
Publication date
Sep 17, 2020
Robert Williams
F41 - WEAPONS