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US2334586A
|
|
Wood-preserving apparatus
|
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US2006777A
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Wood preserving apparatus
|
|
US2066583A
|
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Method of preserving wood
|
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US1623979A
|
|
Wood-treating apparatus
|
|
US1610623A
|
|
Tie-branding apparatus
|
|
US1602417A
|
|
Pole-treating apparatus
|
|
US1590863A
|
|
Tie truck
|
|
US1583018A
|
|
Tie-loading device
|
|
US1499791A
|
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Preservative treatment for timbers
|
|
US1478259A
|
|
Automatic charging and discharging apparatus for wood-treating plants
|
|
US1465742A
|
|
Valve devicf for wood-treating cylinders
|
|
US1484574A
|
|
Wood-treating plant
|
|
US1590447A
|
|
Wood-treating apparatus
|
|
CA169409A
|
|
Timber impregnation
|
|
US1204501A
|
|
Spike-driving machine.
|
|
CA165479A
|
|
Wood preserving mechanism
|
|
US1163271A
|
|
Method of fireproofing timber.
|
|
US1163270A
|
|
Method of impregnating timber.
|
|
US1161986A
|
|
Adzing and boring machine.
|
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US1144669A
|
|
Wood-treating cylinder.
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