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Apparatus for forcibly propelling pellets against a surface
US 2,621,351 A
Filed
: 08/30/1948
Issued
: 12/16/1952
Est. Priority Date
: 08/30/1948
Status: Expired due to Term
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Current Assignee
Raymond G. Piety
Original Assignee
Raymond G. Piety
Inventors
Piety, Raymond G.
Application Number
US03/046,821
Time in Patent Office
1,569 Days
Field of Search
US Class Current
15/104.05
CPC Class Codes
E21B 27/02
Dump bailers, i.e. containe...
E21B 37/00
Methods or apparatus for cl...
Y10T 137/1647
Explosive actuation
Y10T 137/1767
Movable knife or cutter
Y10T 29/47
Burnishing
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