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cartridge conversion cylinders
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September 25, 2013, 02:05 PM
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shieldslx
Junior Member
Join Date: May 26, 2013
Posts: 4
Its really a mix. It has a single pin but no gat. One could be incorperated easily enough. Patent is not an issue. Conversion cylinders have been around for 140 years, and mine is not a blstent copy of any of the major brands.
shieldslx
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