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- Bulgarian invention patent application authorization and annual fee instructions
- Is a Bulgarian invention patent application eligible for DAS
- How long is the PCT period for Bulgarian invention patent application
- Is a Bulgarian utility model application convertible?
- Features of the Bulgarian design patent application process
- Features of Bulgarian Utility Model Patent Application Process
- What are the requirements for the utility model application documents in Bulgaria?
- Instructions for Authorization of Industrial Design and Annual Fees in Bulgaria
- How long is the application period for industrial design in Bulgaria?
- Novelty grace period for industrial design applications in Bulgaria