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Method of forming a manifold
US 2,793,421 A
Filed
: 12/17/1952
Issued
: 05/28/1957
Est. Priority Date
: 12/17/1952
Status: Expired due to Term
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Current Assignee
Vernon Brumbaugh Isaac
Original Assignee
Vernon Brumbaugh Isaac
Inventors
VERNON BRUMBAUGH ISAAC
Application Number
US03/326,553
Time in Patent Office
1,623 Days
Field of Search
US Class Current
29/890.08
CPC Class Codes
B21C 37/29
Making branched pieces, e.g...
B21D 53/00
Making other particular art...
F16L 41/02
Branch units, e.g. made in ...
Y10T 29/49398
Muffler, manifold or exhaus...
Y10T 29/496
Multiperforated metal artic...
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