"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 5877696 | Security system for warheads A weapons security system composed of containers for storage of warheads or warhead material. The containers are equipped to detect breaches in the enclosure walls and to transmit an alarm signal in the event of a breach. The alarm signal is received by a... | 03/02/1999 |