PATENTS. 



TABLE SHOWING THE NUMBER OF PATENTS ISSUED DURING EACH 



MONTH OF THE YEAR 1850. 



[The two following tables have been compiled from the Journal of the Franklin Insti- 

 tute and the Scientific American. The classes into which the first one is divided are 

 those of the Patent-Cilice, but our assignment of particular patents probably differs much 

 from theirs. Each class includes all those in any way related to it. Thus, under " Lum- 

 ber" are placed all machines for its manufacture.] 



TABLE SHOWING THE NUMBER OF PATENTS ISSUED TO CITIZENS OF 



THE DIFFERENT STATES. 



Maine, . 

 New Hampshire, 

 Vermont, . 



10 Massachusetts, . . 143 New York, . 

 18 Rhode Island, . .13 New Jersey, 

 13 Connecticut, . . 5G Pennsylvania, 



302 



24 



153 



