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3011287
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Patent Grant
3011287
References
Source
Patent Number
3,011,287
Date Filed
Not available
Date Issued
Tuesday, December 5, 1961
62 years ago
CPC
A63H33/3094 - Doctors' instruments
US Classifications
446 - Amusement devices: toys
310 - Electrical generator or motor structure
433 - Dentistry
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