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3649857
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Information
Patent Grant
3649857
References
Source
Patent Number
3,649,857
Date Filed
Not available
Date Issued
Tuesday, March 14, 1972
53 years ago
CPC
B41J2/295 - using piezo-electric elements
B41J9/26 - Means for operating hammers to effect impression
H02N2/043 - Mechanical transmission means
US Classifications
310 - Electrical generator or motor structure
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