Title:
AIR PUMPING INSERT FOR SHOES
United States Patent 3475836


Inventors:
Brahm, Harry
Application Number:
US3475836DA
Publication Date:
11/04/1969
Filing Date:
02/29/1968
Assignee:
Harry, Brahm
Primary Class:
Other Classes:
36/3B
International Classes:
A43B17/08; (IPC1-7): A43B7/06
View Patent Images:
US Patent References:
3335505Shoe ventilator1967-08-15
3225463Air ventilated insole1965-12-28
2474815Air circulating insole1949-07-05
2028347Heated boot1936-01-21
1272931N/A1918-07-16