"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 6212854 | Apparatus for charging canisters with a high pressure gas An apparatus for charging a metallic canister having a filler opening therein with a gas under pressure and then sealing the opening to provide a closed, pressurized canister including means having a guide passageway therethrough, engageable with the cani... | 04/10/2001 |
| 5829223 | Apparatus for charging canisters with a high pressure gas An apparatus for charging a metallic canister having a filler opening therein with a gas under pressure and then sealing the opening to provide a closed, pressurized canister including means having a guide passageway therethrough, engageable with the cani... | 11/03/1998 |