Decisions of the courts and the Patent Office as to the validity and scope of the Bell patents.
APA Citation
American Bell Telephone Company. (189). Decisions of the courts and the Patent Office as to the validity and scope of the Bell patents. [S.l.: s.n..
MLA Citation
American Bell Telephone Company. Decisions of the Courts And the Patent Office As to the Validity And Scope of the Bell Patents. [S.l.: s.n., 189.
Warning: These citations may not always be complete (especially for serials).