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Cambridge Thermionic Corp
Cambridge
Active Patents
0
Total Holdings
2
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US2569987A
Pressure responsive transducer
Expired / Lapsed
1948-10-01
1951-10-02
0
Details
US2447061A
Piezoelectric system
Expired / Lapsed
1945-07-18
1948-08-17
0
Details