Title:
Centric switch means
United States Patent 2604559


Inventors:
Shapiro, David C.
Application Number:
US15315950A
Publication Date:
07/22/1952
Filing Date:
03/31/1950
Assignee:
Shapiro, David C.
Primary Class:
Other Classes:
200/DIG.2, 340/573.1, 433/29
International Classes:
A61C19/05
View Patent Images:
US Patent References:
2411194Dentist's bite detector1946-11-19
2205775Indicating device1940-06-25