USD424065SExpiredUtility

PC telephone amplifier switch box

65
Assignee: WING CHEONG ELECTRICAL COMPANYPriority: Oct 21, 1998Filed: Oct 21, 1998Granted: May 2, 2000
Est. expiryOct 21, 2018(expired)· nominal 20-yr term from priority
Inventors:Brian C. Soo
65
PatentIndex Score
21
Cited by
16
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a PC telephone amplifier switch box, as shown.

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