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Wen-Hsien Lin

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Anti-burglar alarming door bell

09/590,701 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)

Filed June 9, 2000

Examiner HUNG T NGUYEN

Class 340

Art Group 2632

Patent No. 6,218,938

Case Type Utility - 340/540000

Status Patent Expired Due to NonPayment of Maintenance Fees Under 37 CFR 1.362

Last Updated: 5 years, 4 months ago

Date	#	Transaction
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Anti-burglar alarming door bell

09/590,701 | U.S. Patent Application

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