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US3066261A
|
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Gated electrical storage circuit
|
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US2920319A
|
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Automatic tracking system
|
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US2649529A
|
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Means for and process of heattreating material to be welded together
|
|
US2496317A
|
|
Combining circuit
|
|
US2540219A
|
|
Means for heat-treating and welding metal parts
|
|
US2184534A
|
|
Pipe welding and heat-treating process and means
|
|
US1935673A
|
|
Pipe joint
|
|
US1623709A
|
|
Method of dyeing textile materials
|
|
US1578933A
|
|
Process of treating silk
|
|
US1526508A
|
|
Furnace attachment
|
|
US1404242A
|
|
Process of bleaching material
|
|
US1256837A
|
|
Automatic screen-gate.
|
|
CA172297A
|
|
Dyeing process
|
|
US1302236A
|
|
Covered box.
|
|
US1152359A
|
|
Method of forming box-shells.
|
|
US823975A
|
|
Device for filling fountain-pens.
|
|
US694436A
|
|
Corner-stay for paper boxes.
|
|
US658025A
|
|
Machine for cutting and scoring paper-board.
|
|
US649112A
|
|
Machine for cutting box-blanks
|
|
US651982A
|
|
Method of shaping paper-box blanks.
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