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Bolt and stud spacer for lightweight sandwich panels
US 2,957,196 A
Filed
: 11/25/1958
Issued
: 10/25/1960
Est. Priority Date
: 11/25/1958
Status: Expired due to Term
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Current Assignee
David B. Kreider
,
Fred M. Delgadillo
Original Assignee
David B. Kreider
,
Fred M. Delgadillo
Inventors
Kreider, David B.
,
Delgadillo, Fred M.
Application Number
US03/776,347
Time in Patent Office
700 Days
Field of Search
US Class Current
16/2.1
CPC Class Codes
F16B 5/01
by means of fastening eleme...
Y10S 411/947
Elastic-gripping action
Y10T 29/4992
by flaring inserted cup or ...
Y10T 29/49938
Radially expanding part in ...
Y10T 29/4994
Radially expanding internal...
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