US5885522A
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Method and apparatus for heat treating and straightening structural members
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CA1171914A
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Method and apparatus for heat treating structural members
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CA1108970A
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Method of induction heat treating, quenching and tempering of structural members
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US4142923A
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Method of induction heat treating, quenching and tempering, of structural members
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Relay valves
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Hydraulic steering booster for vehicles
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Door operating system
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Relay valve for vacuum brake systems
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Automobile frame box-section side rail
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Spacing means for cargo units
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Automatic welding machine
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Power unit for hydraulic brakes
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Solenoid plunger mechanism
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Door operating fluid motor system
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Valve
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Method of electrically welding box sections
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Fifth wheel mounting
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Gear shifting mechanism
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Electrode holder
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Electrode holder
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