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GROOVING DEVICE
US 3,473,359 A
Filed
: 05/22/1967
Issued
: 10/21/1969
Est. Priority Date
: 05/22/1967
Status: Expired due to Term
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Current Assignee
Joslin Alvin Earl
Original Assignee
Joslin Alvin Earl
Inventors
JOSLIN ALVIN EARL
Application Number
US04/640,129
Time in Patent Office
883 Days
Field of Search
US Class Current
72/121
CPC Class Codes
B21D 15/06
annularly with thinning B21...
B23D 21/04
Tube-severing machines with...
Y10T 407/12
Freely movable cutting edge
Y10T 407/2206
Simultaneously usable
Y10T 408/8583
with resiliently urged Tool
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