Hydra Systems International, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4614050 Protective shutter with cleaning aperture for portable laserbeam aiming deviceExpiredJun 27, 84Sep 30, 86[F41G]
4580362 Mount for attaching a device to a firearmExpiredJun 27, 84Apr 08, 86[F41C]
4571870 Quick release mount for firearm aiming deviceExpiredOct 24, 83Feb 25, 86[F41G]
4539769 Mount for attaching a device to a firearmExpiredJun 02, 83Sep 10, 85[F41C]
4494328 Mount for attaching a device to a firearmExpiredAug 08, 83Jan 22, 85[F41C]

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