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Patent No. 6260903

Portable automobile partition

A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.

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Class 175/290 - With latch


Subclass of Class 175 - Boring or penetrating the earth
Definition: Apparatus combined with a movable member which engages the
No. of patents: 4
Last issue date: 05/13/2008


NumberTitleIssue Date
7370712Under reamer
An under reamer for expanding a borehole through an earthen formation is taught. The under reamer includes: a mandrel including an end for connection into a drill string and an opposite end and a housing including an inner bore, telescopically disposed over the mand...
05/13/2008
7293616Expandable bit
An expandable drill bit for use with earth drilling equipment. The bit includes arms held in a closed position, so that the bit may be inserted through casing or a small bore hole. The arms are expandable to create an expanded drill bit having a crown profile common...
11/13/2007
6929076Bore hole underreamer having extendible cutting arms
A bore hole underreamer is provided having a hollow body with a longitudinal axis, which has an external wall, at least two cylindrical bores provided through the external wall and whose axes are transverse to the longitudinal axis. Each of the bores have a cylindri...
08/16/2005
4091883Underreaming tool with overriding extended arm retainer
An underreamer includes a mounting member and a plurality of cutter arms. Means pivotally mounts the cutter arms on the mounting member. Overridable means is operable for holding the cutter arms relatively outward in an underreaming position. The overridi...
05/30/1978
 
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