Games – toys – and sports goods – Exercise equipment – Spring or compression type
Patent
1999-12-08
2000-10-03
Hyder, Philip S.
Games, toys, and sports goods
Exercise equipment
Spring or compression type
D21662, 2102
Patent
active
D04316185
REFERENCES:
patent: D301271 (1989-05-01), Greenfeld et al.
patent: 3966204 (1976-06-01), Dubach
patent: 4889336 (1989-12-01), Schneiderman
patent: 4909505 (1990-03-01), Tee
patent: 5318494 (1994-06-01), Santighian
patent: 5328433 (1994-07-01), Berman
patent: 5857945 (1999-01-01), Papp et al.
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