Title:
Score card
United States Patent 2673413
US Patent References:
/0223569.html
- - 0223569

Variable statistical chart
- - 1360726

Auction-bridge-score indicator
- - 1555190

Ready-reference indicator
- - 1603847

/1732983.html
- - 1732983


Inventors:
Weber, Ralph R.
Publication Date:
03/30/1954
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Assignee:
Weber, Ralph R.
Primary Class:
116/225
Other Classes:
273/148R, 283/49, 283/66.100, 235/89R
International Classes:
A63D5/04; A63D5/00
US Patent References:
1751106Educational appliance
1785866Chart for submitting advertising matter
1957112Bridge score indicator
2171873Calculator