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Knockdown backstop
US 2,819,901 A
Filed
: 02/23/1955
Issued
: 01/14/1958
Est. Priority Date
: 02/23/1955
Status: Expired due to Term
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Current Assignee
Joseph S. Mateja
Original Assignee
Joseph S. Mateja
Inventors
Mateja, Joseph S.
Application Number
US03/489,852
Time in Patent Office
1,056 Days
Field of Search
US Class Current
473/421
CPC Class Codes
A63B 71/022
Backstops, cages, enclosure...
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