USD540700SExpiredUtility

Crystal resonator for QCM measurement of toxic materials

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Assignee: NIHON DEMPA KOGYO COPriority: Mar 18, 2005Filed: Aug 30, 2005Granted: Apr 17, 2007
Est. expiryMar 18, 2025(expired)· nominal 20-yr term from priority
Inventors:Shunichi Wakamatsu
46
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6
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1
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CLAIM 
     
       The ornamental design for a crystal resonator for QCM measurement of toxic materials, as shown and described.

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