The Sesquicentennial Celebration of the United States Patent Office

Science ◽  
1940 ◽  
Vol 91 (2363) ◽  
pp. 10-10
Author(s):  
Conway P. Coe
1948 ◽  
Vol 13 (2) ◽  
pp. 354 ◽  
Author(s):  
Lawrence C. Kingsland

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