Directory of registered patent attorneys & agents as of December 1968.

Disimpan dalam:
Butiran Bibliografi
Pengarang Korporat: United States. Patent Office.
Format: Buku
Bahasa:English
Diterbitkan: [Washington, For sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1969.
Subjek-subjek:
Penanda-penanda: Tambah Penanda
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