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Michael Przemyslaw Szczepkowski
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MESA, AZ, US
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Patents Grants
last 30 patents
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Patent Grant
Adjustable firearm
Patent number
9,383,162
Issue date
Jul 5, 2016
David Joel Spykerman
F41 - WEAPONS
Patents Applications
last 30 patents
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Patent Application
Firearm Magazine Extension Article
Publication number
20170321979
Publication date
Nov 9, 2017
Michael Przemyslaw Szczepkowski
F41 - WEAPONS
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Patent Application
Quick Loading Firearm Magazine Systems and Methods
Publication number
20160003568
Publication date
Jan 7, 2016
XTECH, LLC
David Joel Spykerman
F41 - WEAPONS
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Patent Application
ADJUSTABLE FIREARM
Publication number
20160003576
Publication date
Jan 7, 2016
David Joel Spykerman
F41 - WEAPONS