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Household
Class Information
Number:
15/407
Name:
Brushing, scrubbing, and general cleaning
>
Machines
>
With air blast or suction
>
Air blast only
>
For hollow work, internal cleaning, e.g., tube soot-blowers
> Work operated valve
Description:
Apparatus wherein the air blast is controlled by a valve unseated by the pressure of the device against the work.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
7350265
Self-contained handheld drain clearing compressed air device
Apr. 1, 2008
6032301
Plunger
Mar. 7, 2000
5331747
Hydraulic test apparatus and method for stator in electrical generator
Jul. 26, 1994
3998012
Abrading article
Dec. 21, 1976
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