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Recording with audible and visible monitoring
US 2,986,606 A
Filed
: 02/28/1955
Issued
: 05/30/1961
Est. Priority Date
: 02/28/1955
Status: Expired due to Term
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3
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3 Citations
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Current Assignee
Howard N. Fawcett
,
James D. Digby
,
Ralph H. Kruse
Original Assignee
Howard N. Fawcett
,
James D. Digby
,
Ralph H. Kruse
Inventors
Kruse, Ralph H.
,
Fawcett, Howard N.
,
Digby, James D.
Application Number
US03/490,736
Time in Patent Office
2,283 Days
Field of Search
US Class Current
360/79
CPC Class Codes
A61B 7/04
Electric stethoscopes micro...
G11B 17/0286
mounted on a pivotal lever
G11B 17/0288
by means for moving the tur...
G11B 19/022
Control panels
G11B 2005/0002
Special dispositions or rec...
G11B 25/043
using rotating discs
G11B 31/00
Arrangements for the associ...
G11B 33/06
combined with other apparat...
G11B 5/00
Recording by magnetisation ...
G11B 5/012
Recording on, or reproducin...
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