Fritchle


1908 FRITCHLE Elec 11 12 p 13
1908 FRITCHLE Elec 11 12 p 98
1908 FRITCHLE Elec 11 19 p 102
1908 FRITCHLE Elec 11 29 p 42
1909 FRITCHLE Elec 1 21 p 72
1912 FRITCHLE Elec June p 61
FRITCHLE Elec ENCYL p 262