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"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 4033807 | System for producing two-way mailer A system for manufacturing two-way mailers constituted by a single blank imprinted with data on both faces thereof, the blank then being formed into superposed panels that not only define pre-addressed forwarding and return envelopes but also a printed st... | 07/05/1977 |
