US1151732A
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Lubricating system for compressors and similar machines.
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US1121595A
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Lubricator.
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US1159123A
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Compressor.
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US1075170A
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Pressure-controlling device.
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US1053667A
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Locking mechanism for transfer-cranes.
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US1073876A
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Closed-hopper sand-blast.
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US1101102A
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Intermediate stop device for pneumatic elevators.
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US1079613A
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Automatic-return fluid-operated device.
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US987185A
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Edge-piling lumber-stacker.
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US955714A
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Sand-blast apparatus.
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US932726A
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Balanced-pressure elevator.
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US954401A
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Fluid-actuated balanced hoist.
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US938520A
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Locking mechanism for elevators.
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US841065A
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Elevator.
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US838819A
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Elevator.
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US831248A
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Elevator-cage.
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US848271A
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Valve control for pneumatic elevators.
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US845827A
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Fluid-actuated regulated cushioned hoist.
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US840877A
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Fluid-actuated cushioned hoist.
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US840876A
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Regulated hoist.
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