Equipment for production – distribution – or transformation of ene – Energy conversion or transformation
Design Patent
2001-11-13
2002-12-24
Lichtenstein, Lisa (Department: 2911)
Equipment for production, distribution, or transformation of ene
Energy conversion or transformation
Design Patent
active
D0467537
CLAIM:
The ornamental design for a variable optical attenuator, as shown.
REFERENCES:
patent: 4736100 (1988-04-01), Vastagh
patent: 4952798 (1990-08-01), Graham et al.
Chen Chien Cheng
Wu Kun-Tsan
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Lichtenstein Lisa
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