Doorlock for recognizing a fingerprint

Tools and hardware – Handle – knob or pull – Combined

Patent

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Details

D8308, D8352, 0806

Patent

active

D04291395

REFERENCES:
patent: D313159 (1990-12-01), Kautt
patent: D313926 (1991-01-01), Kautt
patent: D351982 (1994-11-01), Chen
patent: D355348 (1995-02-01), Jans
patent: D389723 (1998-01-01), Godard et al.
patent: 5546471 (1996-08-01), Merjanian
patent: 5920642 (1999-07-01), Merjanian

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