MARCH 25 1882. sion Brooklyn N. Y. No. 261 BROADWAY NEW YORK. TERMS FOR THE SCIENTIFIC AMERICAN. The Scientific American Supplement Scientifi c A merican Ex port Edition. THE SCIENTIFIC AMERICAN SUPPLEMENT No. 820 PROPOSED AMENDMENTS OF THE PATENT LAWS. Contents., 1882-03-25
MARCH 25 1882. sion Brooklyn N. Y. No. 261 BROADWAY NEW YORK. TERMS FOR THE SCIENTIFIC AMERICAN. The Scientific American Supplement Scientifi c A merican Ex port Edition. THE SCIENTIFIC AMERICAN SUPPLEMENT No. 820 PROPOSED AMENDMENTS OF THE PATENT LAWS. Contents., 1882-03-25
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