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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7418896 | Recoilless weapon system A recoilless weapon system is provided rear portion, a barrel in movable connection to the rear portion, and a handle portion in removable connection with the barrel and/or rear portion. Further, a ballast payload cartridge is removably disposed within a ballast pay... | 09/02/2008 |
| 7207130 | Over-and-under shotgun apparatus and method An over-and-under shotgun apparatus includes a radius track which serves as a hinge for articulating the barrel portion of the shotgun apparatus relative to the receiver/stock portion of the shotgun apparatus. The radius track is defined by a female or concave porti... | 04/24/2007 |
| 7010879 | Trigger assemblies for grenade launcher attachments to gas-operated rifles Grenade launchers for attachment to gas-operated service rifles and carbines such as the M16 and M4 are improved by providing them with a trigger assembly that enables the shooter to deliver repeated hammer strikes to the primer of the loaded grenade without having ... | 03/14/2006 |
| 6964220 | Floating barrel handgun method of recoil elimination A floating barrel gun design, a design in which a propellant gas discharge is used to counterbalance the recoil force of the gun, has been improved to include a novel automatic mechanical mechanism which allows the floating or inner barrel to be held stationary with... | 11/15/2005 |
| 5811715 | Practice weapon for a carried recoilless anti-tank weapon A practice weapon for a hand-held recoilless anti-armor weapon including a sub-calibre barrel mounted in a full caliber barrel to enable a marksman to repeatedly train and be subjected to the powerful noise and pressure effects of firing a full caliber we... | 09/22/1998 |
| 4932308 | Light weapon system or launcher with a recoiling tube A weapon system including a carriage and a launching tube for a projectile mounted to the carriage on a cradle in a manner which secures the launch tube to the cradle during transportation, handling and storage and yet permits recoil of the launching tube... | 06/12/1990 |
| 4643071 | Recoilless launching device The countermass of a recoilless launching device is composed of a combustible material and has a firing connection with the working space in which the propellant charge burns up.... | 02/17/1987 |
| 4132149 | Liquid propellant weapon system A gun and ammunition system utilizing a round of ammunition which contains a supply of liquid propellant and after ignition pumps this propellant into the combustion chamber of the gun.... | 01/02/1979 |
| 4050351 | Assembly for launching a projectile An assembly for launching a projectile comprises a launch tube having a smooth or rifled bore, a charge of gunpowder located in the tube for firing a projectile which is placed in the tube in front of the charge, a braking propellant located in the tube b... | 09/27/1977 |
