Title:
Score card
United States Patent 2673413


Inventors:
Weber, Ralph R.
Application Number:
US15023150A
Publication Date:
03/30/1954
Filing Date:
03/17/1950
Assignee:
Weber, Ralph R.
Primary Class:
Other Classes:
235/89R, 273/148R, 283/49, 283/66.1
International Classes:
A63D5/04
View Patent Images:
US Patent References:
2171873Calculator1939-09-05
1957112Bridge score indicator1934-05-01
1785866Chart for submitting advertising matter1930-12-23
1751106Educational appliance1930-03-18
1732983N/A1929-10-22
1603847Ready-reference indicator1926-10-19
1555190Auction-bridge-score indicator1925-09-29
1360726Variable statistical chart1920-11-30
0223569N/A1880-01-13