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All Patents of Type: boiler repair tools
Patents 1 - 4 of 4
First set of recordsLast set of records
383,111May 22, 1888J. DuffyTube Expanderboiler repair tools
1,161,122Nov. 23, 1915A.F. FroussardTube Cleanertube cleaning machines
1,221,984Apr. 10, 1917A.F. FroussardTube Cleanertube cleaning machines
2,112,896Apr. 05, 1938R.M. HusbandApparatus for Cleaning Heat Exchangers and the Likeboiler repair tools
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