From the BlumbergExcelsior: Trademark and Patent Folders website:
Patent and trademark folders with sections for sent to PTO, received from PTO, references, correspondence and drawings as well as receipt cards, bristol board and A-4 metric size paper.
Patents, BlumbergExcelsior: Trademark and Patent Folders
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Add ReviewPatent and trademark folders with sections for sent to PTO, received from PTO, references, correspondence and drawings as well as receipt cards, bristol board and A-4 metric size paper.