|
US2531040A
|
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Sealed dowel bar and shielded bearing
|
|
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|
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Slab connection
|
|
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|
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Concrete expansion joint
|
|
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|
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Concrete expansion joint
|
|
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|
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Joint and joint installing apparatus for concrete roads and the like
|
|
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|
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Dowel and shear plate installing device for road building machines
|
|
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|
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Combination road building machine and concrete spreader
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Concrete road construction
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Joint
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Vacuum screed
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Road building machine
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Road building machine
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Road joint machine
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|
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Expansion joint
|
|
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|
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Combination traffic line and joint installing machine
|
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|
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Road material spreading machine
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Road joint machine
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|
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|
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Stone spreading machine
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US1974240A
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Road joint machine
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US1939007A
|
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Adjustable concrete form
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