Combination lock with backup key
Latest Alloy Metal Manufactory Ltd. Patents:
The broken line showing is included for the purpose of illustrating and forms no part of the claimed design.
Claims
The ornamental design for a combination lock with backup key, as shown and described.
Type: Grant
Filed: Jul 28, 2006
Date of Patent: Nov 6, 2007
Assignee: Alloy Metal Manufactory Ltd. (Shatin, New Territories, Hong Kong)
Inventor: Yat Hung Ho (New Territories)
Primary Examiner: Mitchell Siegel
Attorney: Alix, Yale & Ristas, LLP
Application Number: 29/263,727