Tennis score recorder

Details Tennis score recorder Tennis score recorder

1987-12-07

1991-02-19

Feifer, Melvin B.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Scorer or indicator for game or sport

Patent

active

D03147118

REFERENCES:
patent: 1502662 (1924-07-01), Fox
patent: 1516304 (1924-11-01), Mulvehill
patent: 1620077 (1927-03-01), Cooke
patent: 3584597 (1971-06-01), Simmons
patent: 3730131 (1973-05-01), Izzo
patent: 4072125 (1978-02-01), Spalla
patent: 4165710 (1979-08-01), Gaetano
patent: 4189143 (1980-02-01), Van Auken et al.

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