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VIBRATOR
US 3,522,460 A
Filed
: 11/02/1967
Issued
: 08/04/1970
Est. Priority Date
: 11/02/1967
Status: Expired due to Term
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Current Assignee
William V. Spurlin
Original Assignee
William V. Spurlin
Inventors
Spurlin, William V.
Application Number
US04/680,117
Time in Patent Office
1,006 Days
Field of Search
US Class Current
310/29
CPC Class Codes
B06B 1/04
operating with electromagne...
G01V 1/147
using impact of dropping ma...
H02K 33/02
with armatures moved one w...
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