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Musical squeeze blocks
US 2,879,685 A
Filed
: 05/31/1955
Issued
: 03/31/1959
Est. Priority Date
: 05/31/1955
Status: Expired due to Term
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Current Assignee
Mark Page
Original Assignee
Mark Page
Inventors
MARK PAGE
Application Number
US03/511,891
Time in Patent Office
1,400 Days
Field of Search
US Class Current
84/470.00R
CPC Class Codes
G09B 15/00
Teaching music metronomes G...
G10G 7/02
Tuning forks or like devices
Y10S 84/07
Electric key switch structure
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